Stephen Nicewarner, CRNP
Endocrinology, Diabetes & Metabolism Physician · Frederick, MD
Stephen Nicewarner, CRNP is an endocrinology, diabetes & metabolism physician with a practice address in Frederick, Maryland, and NPI 1548975253, issued on Jan 17, 2023. Check the license (Maryland R228108, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Stephen Nicewarner
- Credential
- CRNP
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- R228108 MD
Self-reported in NPPES; status is on the state search - Practice location
- 9093 Ridgefield Dr Ste 104, Frederick, MD 21701
- Phone
- (240) 956-5475
- Enumerated
- Jan 17, 2023
- Record last updated
- Mar 20, 2026
- Fax
- (240) 891-2600
- Medicare enrollment
- Enrolled (PECOS I20260417002186); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 314 in Maryland → Look up another NPI →
Also registered at 9093 Ridgefield Dr Ste 104
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lynda Artusio, C.R.N.P.-PMHPsychiatric/Mental Health Nurse Practitioner1841363702
- Patrick Farrell, D.O.Family Medicine Physician1053765487
- Jessica McFarland, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1154185197
- Blessing Nwaneri, NPPsychiatric/Mental Health Nurse Practitioner1184272403
- Natalie Reid, FNPFamily Nurse Practitioner1326590068
- Martin Sarkar, D.O.Endocrinology, Diabetes & Metabolism Physician1518005636
Verify Stephen Nicewarner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license R228108Check 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
- Privia Medical Group, LLCWaldorf, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen Nicewarner among 314 endocrinology, diabetes & metabolism physician records in Maryland
Stephen Nicewarner, CRNP is one of 314 endocrinology, diabetes & metabolism physician records with a practice address in Maryland. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than over 99% of them.
- NPI issued2023 · over 99% of these records are older, 0% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2022 · median 2003 among the 193 with a school on file
- Record last updated2026 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Maryland
There are 314 endocrinology, diabetes & metabolism physician records in Maryland.
All 314 in Maryland → Every provider in Frederick → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Martin Sarkar, D.O.Frederick, MD 217011518005636
- Majd Hakim, MDFrederick, MD 217021598871378
- Kayur Bhavsar, DOFrederick, MD 217031588062251
- Nathan Carnell, MDFrederick, MD 217031861406753
- Garima Narayen, D.O.Frederick, MD 217031285053926
- Jeanette Owusu, M.D.Frederick, MD 217031467866913
- Pratik Shah, M.D.Frederick, MD 217031871977793
- Kiarash Zarbalian, MDFrederick, MD 217031467587063
Common questions
What is Stephen Nicewarner, CRNP's NPI number?
Stephen Nicewarner, CRNP's National Provider Identifier (NPI) is 1548975253, issued on Jan 17, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Nicewarner, CRNP located?
The NPPES record lists a practice address at 9093 Ridgefield Dr Ste 104, Frederick, MD, 21701. Phone: (240) 956-5475. Providers update this record themselves, so call before visiting.
How can I verify Stephen Nicewarner, CRNP's license?
NPPES lists Maryland license number R228108, 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.