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POTOMAC OB GYN
NPI 1144977372
Obstetrics & Gynecology in Rockville, MD

Active since March 08, 2022CLIA 21D2259504 · Microscopy
10110 MOLECULAR DR STE 209, ROCKVILLE, MD 20850(301) 654-2275(301) 654-2456 Get Directions Write a Review

NPPES record last updated: January 24, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jan 24, 2023, Jan 4, 2023, Jul 19, 2022 and 2 more (5 updates tracked since 2022).

About Potomac Ob Gyn NPPES

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

POTOMAC OB GYN (NPI 1144977372) is a healthcare organization registered as an obstetrics & gynecology in Rockville, Maryland and active in the NPI registry since March 2022. The organization holds a CLIA Microscopy certificate valid through May 5, 2028 and lists Leslie Badra Masiky, Co-president, as its authorized official.

NPPES Registry Identity

NPI1144977372
Entity TypeOrganization
Primary Taxonomy207V00000X
Legal Business NamePOTOMAC OB GYN
Location Address10110 MOLECULAR DR STE 209Rockville, MD 20850-7547
Mailing Address10110 Molecular Dr Ste 209Rockville, MD 20850-7547 · (301) 654-2275 · Fax (301) 654-2456
Phone(301) 654-2275
Fax(301) 654-2456
Organization SubpartNo
Authorized OfficialLeslie Badra MasikyCo-president · (301) 654-2275
Enumeration DateMarch 8, 2022
Last NPPES UpdateJanuary 24, 20235 updates tracked since enumeration
NPPES CertifiedJanuary 24, 2023
✔ NPI 1144977372 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
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.
10110 MOLECULAR DR STE 209, Rockville, MD 20850
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Potomac Ob Gyn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Potomac Ob Gyn, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Leslie Masiky, M.D.
Obstetrics/Gynecology
NPI 1730382979
10110 MOLECULAR DR STE 209
Rockville, MD 20850
(304) 654-2275
✔ PECOS✔ Accepts MedicareSame address
Aliya Poshni, MD
Obstetrics/Gynecology
NPI 1457389017
10110 MOLECULAR DR STE 209
Rockville, MD 20850
(301) 569-6301
✔ 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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 21D2259504

Potomac Ob Gyn LLC · Rockville, MD
Active · expires May 5, 2028
CLIA Number21D2259504
Laboratory TypePhysician Office
Certificate Effective DateMay 6, 2026
Certificate Expiration DateMay 5, 2028
Laboratory DirectorLeslie Masiky
Laboratory Phone(301) 654-2275
Laboratory LocationPotomac Ob Gyn LLC10110 Molecular Dr Suite 209, Rockville, MD 20850
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

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 Potomac Ob Gyn's NPI number?

The NPI number for Potomac Ob Gyn is 1144977372. It was assigned to this organization in the NPPES registry on March 8, 2022.

Where is Potomac Ob Gyn located?

Potomac Ob Gyn is located at 10110 Molecular Dr Ste 209, Rockville, MD 20850. The listed phone number is (301) 654-2275.

What is Potomac Ob Gyn's specialty?

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

Is Potomac Ob Gyn enrolled in Medicare?

Yes. Potomac Ob Gyn is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Potomac Ob Gyn?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Obstetrics/Gynecology, reassign their Medicare billing to Potomac Ob Gyn. 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. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Potomac Ob Gyn hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 21D2259504) is associated with this NPI, valid through May 5, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Potomac Ob Gyn was last updated on January 24, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.