What is Amitabh Chak's NPI number?

Amitabh Chak's National Provider Identifier (NPI) is 1841215332, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Amitabh Chak's specialty?

Amitabh Chak is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).

Where is Amitabh Chak located?

Amitabh Chak's practice location on file with NPPES is 11100 Euclid Ave, Cleveland, OH 44106-1716.

What is Amitabh Chak's phone number?

The practice phone number listed in the NPPES registry for Amitabh Chak is (216) 844-8500.

Does Amitabh Chak accept Medicare?

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

Is Amitabh Chak's NPI active?

Yes — Amitabh Chak's NPI (1841215332) is active in the NPPES registry as of the last update on 2021-01-12.

IndividualActiveAccepts Medicare

Amitabh Chak, MD

NPI 1841215332 · Gastroenterology Physician · Cleveland, OH

Amitabh Chak, MD is a Gastroenterology Physician provider in Cleveland, OH (NPI 1841215332).

Provider details

NPI number: 1841215332
Entity type: Individual
Primary specialty: Gastroenterology PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: 35-061996 (OH)

Practice location

11100 Euclid Ave

Cleveland, OH 44106-1716

Phone: (216) 844-8500

Street-level locationGet directions

More OH providers

Mailing address

24701 Euclid Ave

Euclid, OH 44117-1714

Specialties & taxonomies

Gastroenterology PhysicianPrimary207RG0100XLicense 35-061996 (OH)
Allopathic & Osteopathic Physicians

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

Profile Score

Established profile(70/100 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
81 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)
Moderate Sedation Services Provided By the Same Physician Or Other Qualified Health Care Professional Performing a Gastrointestinal Endoscopic Service That Sedation Supports, Requiring the Presence of an Independent Trained Observer to Assist in the MonitoG0500	26	$5
Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239	17	$123
Diagnostic Exam of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43235	14	$112
Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222	12	$125
Telephone Medical Discussion With Physician, 21-30 Minutes99443	12	$92

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.

Drug	Part D claims (2024)
Omeprazole	33
Pantoprazole Sodium	33
Lipase/Protease/Amylasebrand: Creon	16
Esomeprazole Magnesium	14

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Transparency — industry payments

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

$21,367 across 16 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: 2006-07-13
Last updated: 2021-01-12
Certified: 2021-01-12

Frequently asked questions

What is Amitabh Chak's NPI number?: Amitabh Chak's National Provider Identifier (NPI) is 1841215332, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Amitabh Chak's specialty?: Amitabh Chak is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
Where is Amitabh Chak located?: Amitabh Chak's practice location on file with NPPES is 11100 Euclid Ave, Cleveland, OH 44106-1716.
What is Amitabh Chak's phone number?: The practice phone number listed in the NPPES registry for Amitabh Chak is (216) 844-8500.
Does Amitabh Chak accept Medicare?: Amitabh Chak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Amitabh Chak's NPI active?: Yes — Amitabh Chak's NPI (1841215332) is active in the NPPES registry as of the last update on 2021-01-12.

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)
Moderate Sedation Services Provided By the Same Physician Or Other Qualified Health Care Professional Performing a Gastrointestinal Endoscopic Service That Sedation Supports, Requiring the Presence of an Independent Trained Observer to Assist in the MonitoG0500	26	$5
Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239	17	$123
Diagnostic Exam of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43235	14	$112
Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222	12	$125
Telephone Medical Discussion With Physician, 21-30 Minutes99443	12	$92

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.

Drug	Part D claims (2024)
Omeprazole	33
Pantoprazole Sodium	33
Lipase/Protease/Amylasebrand: Creon	16
Esomeprazole Magnesium	14

Transparency — industry payments

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

$21,367 across 16 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