Florencia Z. Erwin, PA-C
Physician Assistant · Frederick, MD
Florencia Z. Erwin, PA-C is a physician assistant with a practice address in Frederick, Maryland, and NPI 1992081509, issued on Oct 26, 2011. Check the license (Maryland C04630, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Florencia Z. Erwin
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- C04630 MD
Self-reported in NPPES; status is on the state search - Practice location
- 850 Oak St, Frederick, MD 21703
- Phone
- (240) 566-3300
- Enumerated
- Oct 26, 2011
- Record last updated
- May 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20121012000413); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 850 Oak St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katherine Anderson, PAPhysician Assistant1245294057
- Purcell Bailey, MDInternal Medicine Physician1104824200
- Anita BarryRegistered Dietitian1780419903
- Christine Helinski, MDInternal Medicine Physician1821096918
- Roger Hoffman, PACPhysician Assistant1770551913
- Roma Majmudar, RDObesity and Weight Management Nutrition Registered Dietitian1285313197
Verify Florencia Z. Erwin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license C04630Check 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
- Peacehealth Networks ON Demand LLCBellevue, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
106 physician assistant records list a practice address in Frederick
They are 106 of the 3,981 NPPES records with a practice address in Frederick, and 3,224 physician assistant records in Maryland.
All 106 in Frederick → All 3,224 in Maryland → Every provider in Frederick →
Other physician assistant records in Maryland
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- Eric Abbott, PA-CBaltimore, MD1669873089
- Jenifer Abbott, PA-CHavre De Grace, MD1225136161
- Lauren Abbott, PAFort George G Meade, MD1033253869
- Trevor Abbott, PASalisbury, MD1578984803
- Norhan AbdallaRockville, MD1700631660
- Susanna Abdelkarim, PA-CGaithersburg, MD1477979938
- Helen Abebe, PACheverly, MD1568833671
Common questions
What is Florencia Z. Erwin, PA-C's NPI number?
Florencia Z. Erwin, PA-C's National Provider Identifier (NPI) is 1992081509, issued on Oct 26, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Florencia Z. Erwin, PA-C located?
The NPPES record lists a practice address at 850 Oak St, Frederick, MD, 21703. Phone: (240) 566-3300. Providers update this record themselves, so call before visiting.
How can I verify Florencia Z. Erwin, PA-C's license?
NPPES lists Maryland license number C04630, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
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.