Ahmer Ishtiaq, MD
Internal Medicine Physician · Worcester, MA
Ahmer Ishtiaq, MD is an internal medicine physician with a practice address in Worcester, Massachusetts, and NPI 1508205535, issued on Jun 24, 2013. Check the license (Massachusetts 269054, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Ahmer Ishtiaq
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 269054 MA
V3617 TX
Self-reported in NPPES; status is on the state search - Practice location
- 123 Summer St, Worcester, MA 01608
- Phone
- (508) 363-6849
- Enumerated
- Jun 24, 2013
- Record last updated
- Jul 28, 2025
- Medicare enrollment
- Enrolled (PECOS I20250605003804); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 123 Summer St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Annie Abraham, M.D.Internal Medicine Physician1962437061
- Yem AbulhamayelInternal Medicine Physician1730496381
- Freda Agyemang, NURSE PRACTITIONERFamily Nurse Practitioner1134733280
- Hajrah AhsanHospitalist Physician1497367395
- Padmastuti Akella, MDCritical Care Medicine (Internal Medicine) Physician1467988873
- Ibragim Al-Seykal, M.D.Student in an Organized Health Care Education/Training Program1730615261
Verify Ahmer Ishtiaq in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 269054Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average internal medicine physician in 2024
423 Medicare Part D claims for 146 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone29 claims
- Atorvastatin Calcium18 claims
- Amoxicillin-Clavulanate Potass17 claims
- Doxycycline Hyclate14 claims
- Furosemide13 claims
- Eliquis11 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.
Bills Medicare through 2 group practices
- Quantum Emergency Physicians PABrownwood, TX
- Scott And White ClinicCollege Station, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ahmer Ishtiaq among 6,825 internal medicine physician records in Massachusetts
Ahmer Ishtiaq, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 70% of them.
- NPI issued2013 · 70% of these records are older, 28% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2008 · median 2004 among the 4,103 with a school on file
- Record last updated2025 · 64% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
448 internal medicine physician records list a practice address in Worcester
They are 448 of the 13,166 NPPES records with a practice address in Worcester, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Worcester → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- George Abraham, MDWorcester, MA 016081730181876
- Annie Abraham, M.D.Worcester, MA 016081962437061
- Christine Chang, M.D.Worcester, MA 016081467441170
- Nancy DragoonWorcester, MA 016081285698787
- Brenda Eze, M.D.Worcester, MA 016081356342067
- Adekunle Fajana, M.D.Worcester, MA 016081396727806
- Susan George, MDWorcester, MA 016081609850759
- Peter Lindblad, M.D.Worcester, MA 016081629058847
Common questions
What is Ahmer Ishtiaq, MD's NPI number?
Ahmer Ishtiaq, MD's National Provider Identifier (NPI) is 1508205535, issued on Jun 24, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Ahmer Ishtiaq, MD located?
The NPPES record lists a practice address at 123 Summer St, Worcester, MA, 01608. Phone: (508) 363-6849. Providers update this record themselves, so call before visiting.
How can I verify Ahmer Ishtiaq, MD's license?
NPPES lists Massachusetts license number 269054, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ahmer Ishtiaq, MD prescribe under Medicare Part D?
In 2024, Ahmer Ishtiaq, MD had 423 Medicare Part D claims for 146 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.