Jennifer Mostowski, FNP-BC
Family Medicine Physician · Hagerstown, MD
Jennifer Mostowski, FNP-BC is a family medicine physician with a practice address in Hagerstown, Maryland, and NPI 1588559413, issued on Jun 11, 2025. Check the license (Maryland R162167, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Jennifer Mostowski
- Credential
- FNP-BC
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- R162167 MD
Self-reported in NPPES; status is on the state search - Practice location
- 1219 Mount Aetna RD Ste 300, Hagerstown, MD 21742
- Phone
- (240) 203-8864
- Enumerated
- Jun 11, 2025
- Record last updated
- Jun 11, 2025
- Medicare enrollment
- Enrolled (PECOS I20251015004190); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,912 in Maryland → Look up another NPI →
Verify Jennifer Mostowski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license R162167Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Antietam Family Health, LLCHagerstown, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jennifer Mostowski among 1,912 family medicine physician records in Maryland
Jennifer Mostowski, FNP-BC is one of 1,912 family medicine physician records with a practice address in Maryland. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 99% of them.
- NPI issued2025 · 99% of these records are older, under 1% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2025 · median 2004 among the 1,141 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
61 family medicine physician records list a practice address in Hagerstown
They are 61 of the 2,414 NPPES records with a practice address in Hagerstown, and 1,912 family medicine physician records in Maryland.
All 1,912 in Maryland → Every provider in Hagerstown → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Joseph Asuncion, MDHagerstown, MD 217421225009400
- Allen Ditto, MDHagerstown, MD 217421497750707
- Vicki Ellis, MDHagerstown, MD 217421407828486
- Michael Gaudiose, MDHagerstown, MD 217421578567939
- Aleda Johnson, MDHagerstown, MD 217421063458107
- Ralph Kugler, M.D.Hagerstown, MD 217421821093055
- William Kutzera, MDHagerstown, MD 217421053316273
- Stephen Metzner, MDHagerstown, MD 217421851396089
Common questions
What is Jennifer Mostowski, FNP-BC's NPI number?
Jennifer Mostowski, FNP-BC's National Provider Identifier (NPI) is 1588559413, issued on Jun 11, 2025. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Mostowski, FNP-BC located?
The NPPES record lists a practice address at 1219 Mount Aetna RD Ste 300, Hagerstown, MD, 21742. Phone: (240) 203-8864. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Mostowski, FNP-BC's license?
NPPES lists Maryland license number R162167, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.