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M. MICHAEL MASSUMI, M.D., P.A.
NPI 1295065407
Clinic/Center - Medical Specialty in Towson, MD

Active since January 11, 2010
660 KENILWORTH DR, STE 200, TOWSON, MD 21204(410) 825-5905(410) 825-7712 Get Directions Write a Review

NPPES record last updated: January 11, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About M. Michael Massumi, M.d., P.a. NPPES

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

M. MICHAEL MASSUMI, M.D., P.A. (NPI 1295065407) is a healthcare organization registered as a medical specialty in Towson, Maryland and active in the NPI registry since January 2010. The organization lists Mehrdad Michael Massumi, President / Owner, as its authorized official.

NPPES Registry Identity

NPI1295065407
Entity TypeOrganization
Primary Taxonomy261QM2500X
Legal Business NameM. MICHAEL MASSUMI, M.D., P.A.
Location Address660 KENILWORTH DR, STE 200Towson, MD 21204-2313
Mailing Address660 Kenilworth Dr, Ste 200Towson, MD 21204-2313 · (410) 825-5905 · Fax (410) 825-7712
Phone(410) 825-5905
Fax(410) 825-7712
Organization SubpartNo
Authorized OfficialMehrdad Michael MassumiPresident / Owner · (410) 825-5905
Enumeration DateJanuary 11, 2010
✔ NPI 1295065407 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Medical SpecialtyAmbulatory Health Care Facilities
Taxonomy Code261QM2500X
License✔ Licensed in MD · D0032831
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).
660 KENILWORTH DR, Towson, MD 21204
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Other Identifiers 16

Other4422MMMD · Carefirst Blue Cross Blue Shield
Other25933MD · Mdipa
Other2300008MD · Americhoice
Other2300832MD · Evercare
Medicare UPINE15212
OtherE6580000Carefirst Bluechoice
Other426194Coventry
Other25933One Net Ppo
Other40162901MD · Carefirst Blue Cross Blue Shield
Medicaid091911000MD
Other025221Employee Health Plans
Other03818011MD · United Healthcare
Other25933MD · Optimum Choice
Other4133322Aetna
Medicare PIN4422M
Other25933MD · Mamsi Life

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

M. Michael Massumi, M.d., P.a. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by January 31, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateMarylandEnrollment IDO20100225000055Non-DME Part B · Clinic/Group PracticeDue dateJanuary 31, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to M. Michael Massumi, M.D., P.A., which bills Medicare for the services this clinician delivers.

Clinician (1)

Mehrdad Massumi, MD
Physical Medicine and Rehabilitation
NPI 1407894975
660 KENILWORTH DR SUITE 200
Towson, MD 21204
(410) 825-5905
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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, M.D., P.A.'s NPI number?

The NPI number for M. Michael Massumi, M.D., P.A. is 1295065407. It was assigned to this organization in the NPPES registry on January 11, 2010.

Where is M. Michael Massumi, M.D., P.A. located?

M. Michael Massumi, M.D., P.A. is located at 660 Kenilworth Dr Ste 200, Towson, MD 21204. The listed phone number is (410) 825-5905.

What is M. Michael Massumi, M.D., P.A.'s specialty?

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

Is M. Michael Massumi, M.D., P.A. enrolled in Medicare?

Yes. M. Michael Massumi, M.D., P.A. is registered in the Medicare PECOS enrollment system.

When is M. Michael Massumi, M.D., P.A.'s Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Maryland, Clinic/Group Practice) is due for revalidation by January 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through M. Michael Massumi, M.D., P.A.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Physical Medicine and Rehabilitation) reassigns their Medicare billing to M. Michael Massumi, M.D., P.A.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for M. Michael Massumi, M.D., P.A. was last updated on January 11, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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.