NPPES file of Aug 9, 2026

Allen Zhou, MD

Internal Medicine Physician · Boston, MA

Allen Zhou, MD is an internal medicine physician with a practice address in Boston, Massachusetts, and NPI 1164006391, issued on May 12, 2021. Check the license (Massachusetts 1022021, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164006391
Name
Allen Zhou
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
1022021 MA
Self-reported in NPPES; status is on the state search
Practice location
75 Francis Street, Boston, MA 02115
Phone
(617) 278-0055
Enumerated
May 12, 2021
Record last updated
Jul 9, 2025
Medicare enrollment
Enrolled (PECOS I20250721001814); accepts Medicare assignment
Medical or professional school
State University Of Ny Upstate Medical University, 2021
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 75 Francis Street

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Reza Abdi, MDNephrology Physician1356359368
  2. Ali AboalelaOral and Maxillofacial Pathology Dentistry1356773642
  3. Maureen Achebe, MD, MPHHematology & Oncology Physician1407955172
  4. Ardalan Akbari, M.D.Student in an Organized Health Care Education/Training Program1427897172
  5. Loai Aker, M.D.Neuroradiology Physician1225887193
  6. Rasha Salim Mohamed Al Nadabi, MDGeneral Practice Physician1235997503

Verify Allen Zhou in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 1022021
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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98% fewer Medicare Part D claims than the average internal medicine physician in 2024

67 Medicare Part D claims for 21 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Allen Zhou67
  2. Specialty average3,176

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 one group practice

  1. Brigham And Womens Physicians Organization IncBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Allen Zhou among 6,825 internal medicine physician records in Massachusetts

Allen Zhou, 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 2021, is newer than 89% of them.

  • NPI issued2021 · 89% of these records are older, 8% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2021 · 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).

2,320 internal medicine physician records list a practice address in Boston

They are 2,320 of the 41,865 NPPES records with a practice address in Boston, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Marcy Carty, MD, MPHBoston, MA 021151326038928
  2. Peter Doyle, M.D.Boston, MA 021151770573487
  3. Pracha Eamranond, M.D.Boston, MA 021151073501656
  4. Mark Friedberg, M.D.Boston, MA 021151437149184
  5. Jaye Hefner, MDBoston, MA 021151053384867
  6. Allen Kachalia, MD JDBoston, MA 021151346231982
  7. Daniel Kuritzkes, MDBoston, MA 021151114917416
  8. Sylvia McKean, MDBoston, MA 021151316938954

Common questions

What is Allen Zhou, MD's NPI number?

Allen Zhou, MD's National Provider Identifier (NPI) is 1164006391, issued on May 12, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Allen Zhou, MD located?

The NPPES record lists a practice address at 75 Francis Street, Boston, MA, 02115. Phone: (617) 278-0055. Providers update this record themselves, so call before visiting.

How can I verify Allen Zhou, MD's license?

NPPES lists Massachusetts license number 1022021, 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 Allen Zhou, MD prescribe under Medicare Part D?

In 2024, Allen Zhou, MD had 67 Medicare Part D claims for 21 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.