What is Alexander Choi's NPI number?

Alexander Choi's National Provider Identifier (NPI) is 1013440221, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Alexander Choi's specialty?

Alexander Choi is listed in the NPPES registry with a primary specialty of Sleep Medicine (Psychiatry & Neurology) Physician (Allopathic & Osteopathic Physicians).

Where is Alexander Choi located?

Alexander Choi's practice location on file with NPPES is 676 N Saint Clair St Ste 7-701, Chicago, IL 60611-2927.

What is Alexander Choi's phone number?

The practice phone number listed in the NPPES registry for Alexander Choi is (312) 695-7950.

Does Alexander Choi accept Medicare?

Alexander Choi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Alexander Choi's NPI active?

Yes — Alexander Choi's NPI (1013440221) is active in the NPPES registry as of the last update on 2021-07-12.

IndividualActiveAccepts Medicare

Alexander Choi, M.D., M.P.H.

NPI 1013440221 · Sleep Medicine (Psychiatry & Neurology) Physician · Chicago, IL

Alexander Choi, M.D., M.P.H. is a Sleep Medicine (Psychiatry & Neurology) Physician provider in Chicago, IL (NPI 1013440221).

Provider details

NPI number: 1013440221
Entity type: Individual
Primary specialty: Sleep Medicine (Psychiatry & Neurology) PhysicianAllopathic & Osteopathic Physicians
Credential: M.D., M.P.H.
Sex: Male
Sole proprietor: No
License: 0101268531 (VA)

Practice location

676 N Saint Clair St Ste 7-701

Chicago, IL 60611-2927

Phone: (312) 695-7950

Fax: (312) 926-4771

Street-level locationGet directions

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Mailing address

676 N Saint Clair St Ste 7-701

Chicago, IL 60611-2927

Specialties & taxonomies

Sleep Medicine (Psychiatry & Neurology) PhysicianPrimary2084S0012XLicense 036153157 (IL)
Allopathic & Osteopathic Physicians
Family Medicine Physician207Q00000XLicense 0101268531 (VA)
Allopathic & Osteopathic Physicians
Family Medicine Physician207Q00000XLicense 036153157 (IL)
Allopathic & Osteopathic Physicians
Sleep Medicine (Family Medicine) Physician207QS1201XLicense 036153157 (IL)
Allopathic & Osteopathic Physicians

Additional practice locations (2)

710 N Lake Shore Dr
Chicago, IL 60611-3006
Phone: (312) 695-7950
825 Fairfax Ave Ste 206
Norfolk, VA 23507-1914
Phone: (757) 446-5955

Enrolled with Medicare as Practitioner - Sleep Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(78/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
9 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
3 documented practice locations
Medicare service volume (vs. specialty peers)25% of score
1,014 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211	297	$17
Sleep Study Including Heart Rate, Breathing, and Sleep Time95800	167	$40
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	109	$136
Sleep Study Including Heart Rate, Breathing, and Sleep Time95800	94	$112
Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215	92	$192
New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Suvorexantbrand: Belsomra	102	26
Gabapentin	101	24
Doxepin Hcl	59	28
Pramipexole Di-Hclbrand: Pramipexole Dihydrochloride	48	—
Lemborexantbrand: Dayvigo	34	—
Pregabalin	27	—
Trazodone Hcl	26

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$80 across 3 records (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Enumerated: 2017-04-05
Last updated: 2021-07-12
Certified: 2021-07-12

Frequently asked questions

What is Alexander Choi's NPI number?: Alexander Choi's National Provider Identifier (NPI) is 1013440221, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Alexander Choi's specialty?: Alexander Choi is listed in the NPPES registry with a primary specialty of Sleep Medicine (Psychiatry & Neurology) Physician (Allopathic & Osteopathic Physicians).
Where is Alexander Choi located?: Alexander Choi's practice location on file with NPPES is 676 N Saint Clair St Ste 7-701, Chicago, IL 60611-2927.
What is Alexander Choi's phone number?: The practice phone number listed in the NPPES registry for Alexander Choi is (312) 695-7950.
Does Alexander Choi accept Medicare?: Alexander Choi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Alexander Choi's NPI active?: Yes — Alexander Choi's NPI (1013440221) is active in the NPPES registry as of the last update on 2021-07-12.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211	297	$17
Sleep Study Including Heart Rate, Breathing, and Sleep Time95800	167	$40
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	109	$136
Sleep Study Including Heart Rate, Breathing, and Sleep Time95800	94	$112
Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215	92	$192
New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More

Drug

Part D claims (2024)

Beneficiaries

Suvorexantbrand: Belsomra

102

Gabapentin

101

Doxepin Hcl

Pramipexole Di-Hclbrand: Pramipexole Dihydrochloride

—

Lemborexantbrand: Dayvigo

—

Pregabalin

—

Trazodone Hcl

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$80 across 3 records (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Additional practice locations (2)

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Additional practice locations (2)

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments