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DR. MARY KATHRYN COLLINS D.O.
NPI 1821446196
Obstetrics & Gynecology in Bethesda, MD

Active since May 27, 2016PECOS Enrolled
WALTER REED NATIONAL MILITARY MEDICAL CENTER, 8901 WISCONSIN AVENUE, BETHESDA, MD 20889(301) 295-2045 Get Directions Write a Review

NPPES record last updated: July 28, 2025. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Dr. Mary Kathryn Collins D.o. NPPES

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

DR. MARY KATHRYN COLLINS D.O. (NPI 1821446196) is an individual obstetrics & gynecology provider in Bethesda, Maryland, licensed in Virginia (0102205111) and active in the NPI registry since May 2016. She is enrolled in Medicare PECOS and is a graduate of Philadelphia College Of Osteopathic Medicine (2016).

NPPES Registry Identity

NPI1821446196
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameDR. MARY KATHRYN COLLINSCredential: D.O.
Location AddressWALTER REED NATIONAL MILITARY MEDICAL CENTER, 8901 WISCONSIN AVENUEBethesda, MD 20889
Mailing AddressWalter Reed National Military Medical Center, 8901 Wisconsin AvenueBethesda, MD 20889 · (301) 295-2045
Phone(301) 295-2045
Sole ProprietorNo
Medical School CMSPhiladelphia College Of Osteopathic MedicineGraduated 2016
Enumeration DateMay 27, 2016
Last NPPES UpdateJuly 28, 2025
NPPES CertifiedJuly 28, 2025
✔ NPI 1821446196 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in VA · 0102205111
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
WALTER REED NATIONAL MILITARY MEDICAL CENTER, Bethesda, MD 20889
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mary Kathryn Collins D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4789184433
PECOS Enrollment IDI20260207000769
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20889 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$80.66 typical visit price
range $21.40 – $158.88
Typical copayment $20.16 (range $5.35 – $39.72)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

DR. DOUGLAS GRANT HAWK M.D.
Internal Medicine
WALTER REED NATIONAL MILITARY MEDICAL CENTER
BETHESDA, MD 20889
Montgomery County (301) 400-1012
BENJAMIN SNYDER
Military Health Care Provider
WALTER REED NATIONAL MILITARY MEDICAL CENTER
BETHESDA, MD 20889
Montgomery County (301) 319-2498
THOMAS ANTHONY OLLERHEAD DO
Allergy & Immunology
WALTER REED NATIONAL MILITARY MEDICAL CENTER, 8901 WISCONSIN AVENUE
BETHESDA, MD 20889
Montgomery County (301) 319-8754
DR. DEBRA DEANNE BUCKLAND-COFFEY M.D.
Internal Medicine
WALTER REED NATIONAL MILITARY MEDICAL CENTER, 8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-0568
BRANDON JAMES NEAL MD
Pediatrics
WALTER REED NATIONAL MILITARY MEDICAL CENTER
BETHESDA, MD 20889
Montgomery County (907) 792-9257
DR. NOELLE SUMMERS LARSON MD
Pediatrics (Pediatric Endocrinology)
WALTER REED NATIONAL MILITARY MEDICAL CENTER, 8901 WISCONSIN AVE
BETHESDA, MD 20889
Montgomery County (301) 295-4959
DR. DOUGLAS NORRIS WATERMAN DDS, MS
Dentist (Orthodontics and Dentofacial Orthopedics)
WALTER REED NATIONAL MILITARY MEDICAL CENTER, 8901 WISCONSIN AVE
BETHESDA, MD 20889
Montgomery County (301) 400-2039
DR. NICOLE A. STOUGHTON PSY.D.
Psychologist
WALTER REED NATIONAL MILITARY MEDICAL CENTER, 8901 ROCKVILLE PIKE, BUILDING 85T
BETHESDA, MD 20889
Montgomery County (301) 400-2110

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 Mary Collins's NPI number?

The NPI number for Mary Collins is 1821446196. It was assigned to this individual provider in the NPPES registry on May 27, 2016.

Where is Mary Collins located?

Mary Collins practices at Walter Reed National Military Medical Center 8901 Wisconsin Avenue, Bethesda, MD 20889. The listed phone number is (301) 295-2045.

What is Mary Collins's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Mary Collins enrolled in Medicare?

Yes. Mary Collins is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mary Collins was last updated on July 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.