Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

M MICHAEL MASSUMI, MD, PA
NPI 1124948542
Clinic/Center - Medical Specialty in Rockville, MD

Q: What is M Michael Massumi, MD, PA's NPI number?

The NPI number for M Michael Massumi, MD, PA is 1124948542. It was assigned to this organization in the NPPES registry on July 16, 2026.

Q: What is M Michael Massumi, MD, PA's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Medical Specialty, with taxonomy code 261QM2500X.

Active since July 16, 2026

15201 SHADY GROVE RD STE 102, ROCKVILLE, MD 20850(410) 825-5905(410) 825-7712 Get Directions Write a Review

NPPES record added: July 16, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

On this page

About M Michael Massumi, Md, Pa NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

M MICHAEL MASSUMI, MD, PA (NPI 1124948542) is a healthcare organization registered as a medical specialty in Rockville, Maryland and active in the NPI registry since July 2026. The organization lists Mehrdad Michael Massumi, Owner/president, as its authorized official.

NPPES Registry Identity

NPI1124948542

Entity TypeOrganization

Primary Taxonomy261QM2500X

Legal Business NameM MICHAEL MASSUMI, MD, PA

Location Address15201 SHADY GROVE RD STE 102Rockville, MD 20850-3217

Mailing Address15201 Shady Grove Rd Ste 102Rockville, MD 20850-3217 · (410) 825-5905 · Fax (410) 825-7712

Phone(410) 825-5905

Fax(410) 825-7712

Organization SubpartYesParent: M. Michael Massumi, M.d., P.a.

Authorized OfficialMehrdad Michael MassumiOwner/president · (410) 825-5905

Enumeration DateJuly 16, 2026

NPPES CertifiedJuly 16, 2026

✔ NPI 1124948542 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Medical SpecialtyAmbulatory Health Care Facilities

Taxonomy Code261QM2500X

Definition

An entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to a specific area of medical specialization. Frequently used for Title V related Children's Specialty services or to meet specific public health needs (e.g., infectious diseases or breast and cervical cancer).

15201 SHADY GROVE RD STE 102, Rockville, MD 20850

Open in Google Maps ↗

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is M Michael Massumi, MD, PA's NPI number?

The NPI number for M Michael Massumi, MD, PA is 1124948542. It was assigned to this organization in the NPPES registry on July 16, 2026.

Where is M Michael Massumi, MD, PA located?

M Michael Massumi, MD, PA is located at 15201 Shady Grove Rd Ste 102, Rockville, MD 20850. The listed phone number is (410) 825-5905.

What is M Michael Massumi, MD, PA's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Medical Specialty, with taxonomy code 261QM2500X.

When was this NPI record last updated?

The NPPES record for M Michael Massumi, MD, PA was last updated on July 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.