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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. PETER HOWARD RHEINSTEIN M.D.
NPI 1962457853
Family Medicine - Geriatric Medicine in Severna Park, MD

Active since May 23, 2006
621 HOLLY RIDGE RD, SEVERNA PARK, MD 21146(410) 647-9500(410) 647-6135 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Dr. Peter Howard Rheinstein M.d. NPPES

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

DR. PETER HOWARD RHEINSTEIN M.D. (NPI 1962457853) is an individual geriatric medicine provider in Severna Park, Maryland, licensed in District Of Columbia (MD8060) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1962457853
Entity TypeIndividualMale
Primary Taxonomy207QG0300X
Provider Legal NameDR. PETER HOWARD RHEINSTEINCredential: M.D.
Location Address621 HOLLY RIDGE RDSeverna Park, MD 21146-3520
Mailing Address621 Holly Ridge RdSeverna Park, MD 21146-3520 · (410) 647-9500 · Fax (410) 647-6135
Phone(410) 647-9500
Fax(410) 647-6135
Sole ProprietorNo
Enumeration DateMay 23, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1962457853 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyFamily Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207QG0300X
Licenses✔ Licensed in DC · MD8060✔ Licensed in MD · D16565✔ Licensed in CA · G16665
Definition
A family medicine physician with special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes, and the hospital.
Also ListedFamily MedicineTaxonomy 207Q00000X · License D16565 (MD), MD8060 (DC), G16665 (CA)
Also ListedClinical PharmacologyTaxonomy 208U00000X · License D16565 (MD), MD8060 (DC), G16665 (CA)
Also ListedLegal MedicineTaxonomy 209800000X · License D16565 (MD), MD8060 (DC), G16665 (CA)
621 HOLLY RIDGE RD, Severna Park, MD 21146
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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 Peter Rheinstein's NPI number?

The NPI number for Peter Rheinstein is 1962457853. It was assigned to this individual provider in the NPPES registry on May 23, 2006.

Where is Peter Rheinstein located?

Peter Rheinstein practices at 621 Holly Ridge Rd, Severna Park, MD 21146. The listed phone number is (410) 647-9500.

What is Peter Rheinstein's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Geriatric Medicine, with taxonomy code 207QG0300X.

When was this NPI record last updated?

The NPPES record for Peter Rheinstein was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 days 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.