1. Home
  2. Directory
  3. Maryland
  4. Rockville
  5. Internal Medicine
  6. NPI Profile

PINNACLE HEALTHCARE SERVICES, LLC
NPI 1316551237
Internal Medicine - Addiction Medicine in Rockville, MD

Active since September 08, 2020CLIA 49D2227802 · Waiver
1201 SEVEN LOCKS RD STE 360, ROCKVILLE, MD 20854(703) 957-9420(703) 419-3992 Get Directions Write a Review

NPPES record last updated: August 17, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 17, 2026, May 18, 2026, Mar 4, 2021 and 1 more (4 updates tracked since 2020).

About Pinnacle Healthcare Services, Llc NPPES

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

PINNACLE HEALTHCARE SERVICES, LLC (NPI 1316551237), doing business as Pinnacle Healthcare Group, Llc, is a healthcare organization registered as an addiction medicine in Rockville, Maryland and active in the NPI registry since September 2020. The organization holds a CLIA Waiver certificate valid through June 16, 2027, maintains 3 additional practice locations, and lists Kurwa Neemat Nyigu, Medical Director, as its authorized official.

NPPES Registry Identity

NPI1316551237
Entity TypeOrganization
Primary Taxonomy207RA0401X
Legal Business NamePINNACLE HEALTHCARE SERVICES, LLC
Location Address1201 SEVEN LOCKS RD STE 360Rockville, MD 20854-6901
Mailing Address4660 Kenmore Ave Ste 200Alexandria, VA 22304-1306 · (703) 957-9420 · Fax (703) 419-3992
Phone(703) 957-9420
Fax(703) 419-3992
Organization SubpartNo
Authorized OfficialKurwa Neemat NyiguMedical Director · (336) 624-7164
Enumeration DateSeptember 8, 2020
Last NPPES UpdateAugust 17, 20264 updates tracked since enumeration
NPPES CertifiedAugust 17, 2026
✔ NPI 1316551237 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Addiction MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RA0401X
Definition
An internist doctor of osteopathy that specializes in the treatment of addiction disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Added Qualifications in the field of Addiction Medicine.
Also ListedInternal MedicineTaxonomy 207R00000X
Also ListedPsychiatry & Neurology · PsychiatryTaxonomy 2084P0800X
1201 SEVEN LOCKS RD STE 360, Rockville, MD 20854
Open in Google Maps ↗

Other Names 1

Doing Business AsPinnacle Healthcare Group, Llc

Secondary Practice Locations 3

Location 11050 Connecticut Ave NW Ste 500Washington, DC 20036-5304 · Phone (703) 957-9420 · Fax (703) 419-3992
Location 24660 Kenmore Ave Ste 200Alexandria, VA 22304-1306 · Phone (703) 957-9420 · Fax (703) 419-3992
Location 3712 H, street NE ste1890Washington, DC 20002-3627 · Phone (703) 957-9420

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-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)

Pinnacle Healthcare Services, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

8

Medicare enrollment records show 8 clinicians reassign Medicare billing to Pinnacle Healthcare Services, LLC, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (8)

Kurwa Nyigu, M.D.
Internal Medicine
NPI 1417925272
4660 KENMORE AVE STE 200
Alexandria, VA 22304
(336) 624-7164
✔ PECOS✔ Accepts Medicare17 mi
Olubunmi Fajuyigbe, FNP
Nurse Practitioner
NPI 1043655137
4515 EDSON PL NE
Washington, DC 20019
(202) 748-5430
✔ PECOS17 mi
Rosemary Ireri, FNP-C
Nurse Practitioner
NPI 1356793020
6218 N KINGS HWY STE B
Alexandria, VA 22303
(571) 560-2621
✔ PECOS✔ Accepts Medicare20 mi
Isaac Owusu, NP
Nurse Practitioner
NPI 1265131536
12150 ANNAPOLIS RD STE 100
Glenn Dale, MD 20769
(301) 464-7601
✔ PECOS✔ Accepts Medicare21 mi
Shakia Nicholson, NP
Nurse Practitioner
NPI 1497413587
7501 SURRATTS RD STE 308
Clinton, MD 20735
(301) 877-7200
✔ PECOS27 mi
Ibrahim Iftoni
Nurse Practitioner
NPI 1730772369
3535 COVERED BRIDGE LN
Woodbridge, VA 22192
(571) 208-4816
✔ PECOS✔ Accepts Medicare28 mi
Tishambay Thompson, NP
Nurse Practitioner
NPI 1598093072
5372 FALLOWATER LN STE 200
Roanoke, VA 24018
(216) 898-8399
✔ PECOS✔ Accepts Medicare199 mi
Chiedozie Eke, MD
Internal Medicine
NPI 1669636494
2645 MERIDIAN PKWY STE 323
Durham, NC 27713
(984) 227-8902
✔ PECOS✔ Accepts Medicare237 mi

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 of Waiver 49D2227802

Pinnacle Healthcare Services · Alexandria, VA
Active · expires Jun 16, 2027
CLIA Number49D2227802
Laboratory TypePhysician Office
Certificate Effective DateJune 17, 2025
Certificate Expiration DateJune 16, 2027
Laboratory DirectorKurwa N. Nyigu
Laboratory Phone(703) 957-9420
Laboratory LocationPinnacle Healthcare Services4660 Kenmore Ave Suite 200, Alexandria, VA 22304
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only 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 Pinnacle Healthcare Services, LLC's NPI number?

The NPI number for Pinnacle Healthcare Services, LLC is 1316551237. It was assigned to this organization in the NPPES registry on September 8, 2020. The provider is doing business as Pinnacle Healthcare Group, LLC.

Where is Pinnacle Healthcare Services, LLC located?

Pinnacle Healthcare Services, LLC is located at 1201 Seven Locks Rd Ste 360, Rockville, MD 20854. The listed phone number is (703) 957-9420.

What is Pinnacle Healthcare Services, LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Addiction Medicine, with taxonomy code 207RA0401X.

Is Pinnacle Healthcare Services, LLC enrolled in Medicare?

Yes. Pinnacle Healthcare Services, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Pinnacle Healthcare Services, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 8 clinicians in 2 Medicare specialties reassign their Medicare billing to Pinnacle Healthcare Services, LLC. 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. The largest specialties are Nurse Practitioner (6) and Internal Medicine (2). Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Pinnacle Healthcare Services, LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 49D2227802) is associated with this NPI, valid through June 16, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Pinnacle Healthcare Services, LLC was last updated on August 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.