What is Sean Sims's NPI number?

Sean Sims's National Provider Identifier (NPI) is 1821428673, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Sean Sims's specialty?

Sean Sims is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).

Where is Sean Sims located?

Sean Sims's practice location on file with NPPES is 20311 Lappans Rd Ste 100, Boonsboro, MD 21713-2037.

What is Sean Sims's phone number?

The practice phone number listed in the NPPES registry for Sean Sims is (301) 432-8470.

Does Sean Sims accept Medicare?

Sean Sims is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Sean Sims's NPI active?

Yes — Sean Sims's NPI (1821428673) is active in the NPPES registry as of the last update on 2026-03-17.

IndividualActiveAccepts Medicare

Sean Sims, PA-C

NPI 1821428673 · Physician Assistant · Boonsboro, MD

Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Sean Sims, PA-C is a Physician Assistant provider in Boonsboro, MD (NPI 1821428673).

Provider details

NPI number: 1821428673
Entity type: Individual
Primary specialty: Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Credential: PA-C
Sex: Male
Sole proprietor: No
License: OA003146 (PA)

Specialties & taxonomies

Physician AssistantPrimary363A00000XLicense MA056472 (PA)
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistant363A00000XLicense OA003146 (PA)
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistant363A00000XLicense C06711 (MD)
Physician Assistants & Advanced Practice Nursing Providers

Profile Score

Detailed profile(86/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
12 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
4 documented practice locations

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

20311 Lappans Rd Ste 100

Boonsboro, MD 21713-2037

Phone: (301) 432-8470

Fax: (301) 432-8470

Street-level locationGet directions

More MD providers

Mailing address

Po Box 412047

Boston, MA 02241-2047

Additional practice locations (3)

13424 Pennsylvania Ave Ste 205
Hagerstown, MD 21742
Phone: (240) 313-9890
Fax: (240) 313-9891
13620 Crayton Boulevard
Hagerstown, MD 21742
Phone: (240) 313-9890
Fax: (240) 313-9891
212 Wallace Creek Road
Camp Lejeune, NC 28547
Phone: (910) 450-8328

Enumerated: 2013-11-14
Last updated: 2026-03-17
Certified: 2026-03-17

Frequently asked questions

What is Sean Sims's NPI number?: Sean Sims's National Provider Identifier (NPI) is 1821428673, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Sean Sims's specialty?: Sean Sims is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
Where is Sean Sims located?: Sean Sims's practice location on file with NPPES is 20311 Lappans Rd Ste 100, Boonsboro, MD 21713-2037.
What is Sean Sims's phone number?: The practice phone number listed in the NPPES registry for Sean Sims is (301) 432-8470.
Does Sean Sims accept Medicare?: Sean Sims is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Sean Sims's NPI active?: Yes — Sean Sims's NPI (1821428673) is active in the NPPES registry as of the last update on 2026-03-17.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.