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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. ROBERT H. MAYERNIK M.D.
NPI 1942290127
Obstetrics & Gynecology - Gynecology in Frederick, MD

Active since October 27, 2005
174 THOMAS JOHNSON DR, SUITE 204, FREDERICK, MD 21702(301) 662-2300(301) 662-7364 Get Directions Write a Review

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

About Dr. Robert H. Mayernik M.d. NPPES

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

DR. ROBERT H. MAYERNIK M.D. (NPI 1942290127) is an individual gynecology provider in Frederick, Maryland, licensed in Maryland (D0026401) and active in the NPI registry since October 2005.

NPPES Registry Identity

NPI1942290127
Entity TypeIndividualMale
Primary Taxonomy207VG0400X
Provider Legal NameDR. ROBERT H. MAYERNIKCredential: M.D.
Location Address174 THOMAS JOHNSON DR, SUITE 204Frederick, MD 21702-4423
Mailing Address7185 Stillwater CtFrederick, MD 21702-2988 · (301) 662-2300 · Fax (301) 662-7364
Phone(301) 662-2300
Fax(301) 662-7364
Sole ProprietorNo
Enumeration DateOctober 27, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1942290127 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & Gynecology · GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207VG0400X
License✔ Licensed in MD · D0026401
Definition
A physician who specializes in diagnosis, treatment, and management of patients with gynecologic conditions. Source: National Uniform Claim Committee
174 THOMAS JOHNSON DR, Frederick, MD 21702
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Other Providers at the Same Location NPPES 12

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JOHN CHRISTOPHER HENRY M.D.
Specialist
174 THOMAS JOHNSON DR, SUITE 204
FREDERICK, MD 21702
Frederick County (301) 228-2943
DR. RICHARD GARETH HOLZ M.D,
Obstetrics & Gynecology (Gynecology)
174 THOMAS JOHNSON DR, SUITE 204
FREDERICK, MD 21702
Frederick County (301) 662-2300
DR. ROBERT H. MAYERNIK, LLC
Specialist
174 THOMAS JOHNSON DR, SUITE 204
FREDERICK, MD 21702
Frederick County (301) 662-2300
DR. SALAM ZUGHAYER DO
Psychiatry & Neurology (Neurology)
174 THOMAS JOHNSON DR, SUITE 100
FREDERICK, MD 21702
Frederick County (301) 668-9380
ERNEST CLAUDE CLEVINGER JR. M.D.
Psychiatry & Neurology (Neurology)
174 THOMAS JOHNSON DR, SUITE 100
FREDERICK, MD 21702
Frederick County (301) 668-9380
JOHN JOSEPH GOLSKI D.D.S.
Dentist (Periodontics)
174 THOMAS JOHNSON DR, STE.101
FREDERICK, MD 21702
Frederick County (301) 620-1692
J. CHRISTOPHER HENRY, M.D., LLC
Ophthalmology
174 THOMAS JOHNSON DR, SUITE 204
FREDERICK, MD 21702
Frederick County (301) 228-2943
KEY NEUROLOGY, LLC
Psychiatry & Neurology (Neurology)
174 THOMAS JOHNSON DR, SUITE 100
FREDERICK, MD 21702
Frederick County (301) 668-9380

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 Robert Mayernik's NPI number?

The NPI number for Robert Mayernik is 1942290127. It was assigned to this individual provider in the NPPES registry on October 27, 2005.

Where is Robert Mayernik located?

Robert Mayernik practices at 174 Thomas Johnson Dr Suite 204, Frederick, MD 21702. The listed phone number is (301) 662-2300.

What is Robert Mayernik's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecology, with taxonomy code 207VG0400X.

When was this NPI record last updated?

The NPPES record for Robert Mayernik 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 32 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.