What is Inessa Gelfand's NPI number?

Inessa Gelfand's National Provider Identifier (NPI) is 1528080637, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Inessa Gelfand's specialty?

Inessa Gelfand is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).

Where is Inessa Gelfand located?

Inessa Gelfand's practice location on file with NPPES is 6420 N. California Ave., Chicago, IL 60645.

What is Inessa Gelfand's phone number?

The practice phone number listed in the NPPES registry for Inessa Gelfand is (773) 973-6100.

Does Inessa Gelfand accept Medicare?

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

Is Inessa Gelfand's NPI active?

Yes — Inessa Gelfand's NPI (1528080637) is active in the NPPES registry as of the last update on 2020-02-26.

IndividualActiveAccepts Medicare

Inessa Gelfand, M.D.

NPI 1528080637 · Endocrinology, Diabetes & Metabolism Physician · Chicago, IL

Inessa Gelfand, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Chicago, IL (NPI 1528080637).

Provider details

NPI number: 1528080637
Entity type: Individual
Primary specialty: Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Female
Sole proprietor: No
License: 036-115321 (IL)

Practice location

6420 N. California Ave.

California Devon Medical Center

Chicago, IL 60645

Phone: (773) 973-6100

Fax: (773) 262-4882

Street-level locationGet directions

More IL providers

Mailing address

342 S Milwaukee Ave

Wheeling, IL 60090-5021

Specialties & taxonomies

Endocrinology, Diabetes & Metabolism PhysicianPrimary207RE0101XLicense 036-115321 (IL)
Allopathic & Osteopathic Physicians

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

Profile Score

Detailed profile(94/100 index)

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

Registry tenure25% of score
20 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
1 documented practice location
Medicare service volume (vs. specialty peers)25% of score
3,895 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)
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	1,563	$135
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	468	$17
Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251	319	$36
Insertion of Needle Into Vein for Collection of Blood Sample36415	209	$9
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	157	$96

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 70 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Levothyroxine Sodium	975	209
Metformin Hcl	624	161
Glimepiride	516	120
Empagliflozinbrand: Jardiance	455	96
Semaglutidebrand: Ozempic	450	92
Linagliptinbrand: Tradjenta	342	64
Metformin Hcl

Transparency — industry payments

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

$2,460 across 88 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: 2006-07-25
Last updated: 2020-02-26
Certified: 2020-02-26

Frequently asked questions

What is Inessa Gelfand's NPI number?: Inessa Gelfand's National Provider Identifier (NPI) is 1528080637, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Inessa Gelfand's specialty?: Inessa Gelfand is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
Where is Inessa Gelfand located?: Inessa Gelfand's practice location on file with NPPES is 6420 N. California Ave., Chicago, IL 60645.
What is Inessa Gelfand's phone number?: The practice phone number listed in the NPPES registry for Inessa Gelfand is (773) 973-6100.
Does Inessa Gelfand accept Medicare?: Inessa Gelfand is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Inessa Gelfand's NPI active?: Yes — Inessa Gelfand's NPI (1528080637) is active in the NPPES registry as of the last update on 2020-02-26.

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)
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	1,563	$135
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	468	$17
Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251	319	$36
Insertion of Needle Into Vein for Collection of Blood Sample36415	209	$9
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	157	$96

Drug

Part D claims (2024)

Beneficiaries

Levothyroxine Sodium

975

209

Metformin Hcl

624

161

Glimepiride

516

120

Empagliflozinbrand: Jardiance

455

Semaglutidebrand: Ozempic

450

Linagliptinbrand: Tradjenta

342

Metformin Hcl

Transparency — industry payments

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

$2,460 across 88 records (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments