Azfar Chak, MD
Internal Medicine Physician · Nyack, NY
Azfar Chak, MD is an internal medicine physician with a practice address in Nyack, New York, and NPI 1043475486, issued on Jul 24, 2008. Check the license (New York 248157, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Azfar Chak
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 248157 NY
Self-reported in NPPES; status is on the state search - Practice location
- 311 N Midland Ave, Nyack, NY 10960
- Phone
- (845) 358-5006
- Enumerated
- Jul 24, 2008
- Record last updated
- Dec 22, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (845) 358-4340
- Medicaid ID
- 03130403 NY
- Medicare enrollment
- Enrolled (PECOS I20090717000221); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 311 N Midland Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Azfar Chak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 248157Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average internal medicine physician in 2024
626 Medicare Part D claims for 184 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Cefazolin Sodium51 claims
- Ceftriaxone47 claims
- Doxycycline Hyclate45 claims
- Vancomycin Hcl44 claims
- Amoxicillin-Clavulanate Potass40 claims
- Sulfamethoxazole-Trimethoprim32 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 42.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Azfar Chak among 12,067 internal medicine physician records in New York
Azfar Chak, MD is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 56% of them.
- NPI issued2008 · 56% of these records are older, 40% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2002 · median 2002 among the 7,221 with a school on file
- Record last updated2011 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
24 internal medicine physician records list a practice address in Nyack
They are 24 of the 612 NPPES records with a practice address in Nyack, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Nyack → Internal Medicine Physician nationwide →
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Common questions
What is Azfar Chak, MD's NPI number?
Azfar Chak, MD's National Provider Identifier (NPI) is 1043475486, issued on Jul 24, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Azfar Chak, MD located?
The NPPES record lists a practice address at 311 N Midland Ave, Nyack, NY, 10960. Phone: (845) 358-5006. Providers update this record themselves, so call before visiting.
How can I verify Azfar Chak, MD's license?
NPPES lists New York license number 248157, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Azfar Chak, MD prescribe under Medicare Part D?
In 2024, Azfar Chak, MD had 626 Medicare Part D claims for 184 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Azfar Chak, MD's MIPS final score?
The 2023 MIPS final score is 42.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.