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ROBERT HOLLEY PA-C
NPI 1659872109
Physician Assistant in Bethesda, MD

Active since February 21, 2018
8901 ROCKVILLE PIKE, BETHESDA, MD 20889(301) 295-4000 Get Directions Write a Review

NPPES record last updated: July 28, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jun 5, 2023, Feb 21, 2018 (2 updates tracked since 2018).

About Robert Holley Pa-c NPPES

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

ROBERT HOLLEY PA-C (NPI 1659872109) is an individual physician assistant in Bethesda, Maryland, licensed in Montana (118017) and active in the NPI registry since February 2018.

NPPES Registry Identity

NPI1659872109
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameROBERT HOLLEYCredential: PA-C
Location Address8901 ROCKVILLE PIKEBethesda, MD 20889-4504
Mailing Address8901 Rockville PikeBethesda, MD 20889-0001 · (301) 295-4000
Phone(301) 295-4000
Sole ProprietorYes
Enumeration DateFebruary 21, 2018
Last NPPES UpdateJuly 28, 20252 updates tracked since enumeration
NPPES CertifiedJuly 28, 2025
✔ NPI 1659872109 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in MT · 118017
Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

8901 ROCKVILLE PIKE, Bethesda, MD 20889
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Other Identifiers 1

Other1151148Nccpa Id

Other Providers at the Same Location NPPES 20

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

WILLIAM H.J. HAFFNER M.D.
Obstetrics & Gynecology
8901 ROCKVILLE PIKE, OBG NNMC
BETHESDA, MD 20889
Montgomery County (301) 295-4390
DR. BRIAN HUNTINGTON HALL M.D.
Pediatrics (Neonatal-Perinatal Medicine)
8901 ROCKVILLE PIKE, BUILDING 10, 6TH FLOOR (NICU)
BETHESDA, MD 20889
Montgomery County (301) 319-4691
DR. MICHAEL PATRICK MCNALLY MD
Surgery
8901 ROCKVILLE PIKE, DEPARTMENT OF SURGERY
BETHESDA, MD 20889
Montgomery County (301) 295-2420
KASSANDRA MERKER M.D.
Pediatrics
8901 ROCKVILLE PIKE, PEDIATRICS - NNMC
BETHESDA, MD 20889
Montgomery County (301) 295-4941
DANIEL HEBERT MD
Orthopaedic Surgery (Sports Medicine)
8901 ROCKVILLE PIKE, DEPARTMENT OF ORTHPAEDIC SURGERY
BETHESDA, MD 20889
Montgomery County (571) 477-0190
DR. KAREN MARY FARIZO M.D.
Pediatrics
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4941
PATRICIA M SMITH PA-C
Physician Assistant (Medical)
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4420
JOHN KEELING
Neuromusculoskeletal Medicine, Sports Medicine
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-0730

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 Holley's NPI number?

The NPI number for Robert Holley is 1659872109. It was assigned to this individual provider in the NPPES registry on February 21, 2018.

Where is Robert Holley located?

Robert Holley practices at 8901 Rockville Pike, Bethesda, MD 20889. The listed phone number is (301) 295-4000.

What is Robert Holley's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

When was this NPI record last updated?

The NPPES record for Robert Holley was last updated on July 28, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.