NPPES file of Aug 9, 2026

Donald H. Perlo, MD

Internal Medicine Physician · Somerville, MA

Donald H. Perlo, MD is an internal medicine physician with a practice address in Somerville, Massachusetts, and NPI 1366555260, issued on Aug 16, 2006. Check the license (Massachusetts 80024, 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
1366555260
Name
Donald H. Perlo
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
80024 MA
Self-reported in NPPES; status is on the state search
Practice location
40 Holland St, Somerville, MA 02144
Phone
(617) 629-6000
Enumerated
Aug 16, 2006
Record last updated
Feb 18, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20040225000710); accepts Medicare assignment
Medical or professional school
Jefferson Medical College Of Thomas Jefferson University, 1991
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 40 Holland St

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

  1. Hala Ali Ibrahim, MDPediatrics Physician1902469877
  2. Carole Allen, M.D.Pediatrics Physician1275518235
  3. Andrew Angel, M.D.Internal Medicine Physician1417927724
  4. Dolly Arjun, PA-CPediatrics Physician1376924738
  5. Jill Ashcraft, DPMFoot & Ankle Surgery Podiatrist1316205909
  6. Rachel Berger, M.D.Internal Medicine Physician1326019456

Verify Donald H. Perlo 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 80024
    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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90% fewer Medicare Part D claims than the average internal medicine physician in 2024

311 Medicare Part D claims for 114 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Donald Perlo311
  2. Specialty average3,176

Most prescribed

  1. Amlodipine Besylate27 claims
  2. Lorazepam15 claims
  3. Atorvastatin Calcium14 claims
  4. Losartan Potassium14 claims
  5. Lisinopril13 claims
  6. Levothyroxine Sodium11 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 one group practice

  1. Arlington Family Practice PCArlington, MA

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

Donald H. Perlo among 6,825 internal medicine physician records in Massachusetts

Donald H. Perlo, 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 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 54% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1991 · median 2004 among the 4,103 with a school on file
  • Record last updated2021 · 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).

36 internal medicine physician records list a practice address in Somerville

They are 36 of the 1,860 NPPES records with a practice address in Somerville, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Andrew Angel, M.D.Somerville, MA 021441417927724
  2. Rachel Berger, M.D.Somerville, MA 021441326019456
  3. Elisa Choi, M.D.Somerville, MA 021441942268362
  4. Eleanor Hobbs, M.D.Somerville, MA 021441912975046
  5. Gregory Johnson, MDSomerville, MA 021441942213509
  6. Kavita Ketwaroo, M.D.Somerville, MA 021441457614356
  7. James Liu, M.D.Somerville, MA 021441114983533
  8. Manuela Matei, M.D.Somerville, MA 021441467404475

Common questions

What is Donald H. Perlo, MD's NPI number?

Donald H. Perlo, MD's National Provider Identifier (NPI) is 1366555260, issued on Aug 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Donald H. Perlo, MD located?

The NPPES record lists a practice address at 40 Holland St, Somerville, MA, 02144. Phone: (617) 629-6000. Providers update this record themselves, so call before visiting.

How can I verify Donald H. Perlo, MD's license?

NPPES lists Massachusetts license number 80024, 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 Donald H. Perlo, MD prescribe under Medicare Part D?

In 2024, Donald H. Perlo, MD had 311 Medicare Part D claims for 114 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.