Tinsley Simonds Iselin, PA-C
Physician Assistant · Clinton, MD
Tinsley Simonds Iselin, PA-C is a physician assistant with a practice address in Clinton, Maryland, and NPI 1255682589, issued on Sep 26, 2012. Check the license (Maryland C0004858, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tinsley Simonds Iselin
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- C0004858 MD
0110004018 VA
Self-reported in NPPES; status is on the state search - Practice location
- 8926 Woodyard RD, Clinton, MD 20735
- Phone
- (301) 856-1682
- Enumerated
- Sep 26, 2012
- Record last updated
- Sep 26, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (301) 856-0964
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,224 in Maryland → Look up another NPI →
Also registered at 8926 Woodyard RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Tinsley Simonds Iselin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license C0004858Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average physician assistant in 2024
29 Medicare Part D claims for 15 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Tinsley Simonds Iselin among 3,224 physician assistant records in Maryland
Tinsley Simonds Iselin, PA-C is one of 3,224 physician assistant records with a practice address in Maryland. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 36% of them.
- NPI issued2012 · 36% of these records are older, 61% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2012 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
30 physician assistant records list a practice address in Clinton
They are 30 of the 832 NPPES records with a practice address in Clinton, and 3,224 physician assistant records in Maryland.
All 3,224 in Maryland → Every provider in Clinton → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Luke Blankenheim, PA-CClinton, MD 207351174829774
- George Carter, PAClinton, MD 207351184860827
- Alkiesha Collins, PAClinton, MD 207351184804650
- Christopher Demas, PAClinton, MD 207351679569982
- Leslie Fincher, PA-CClinton, MD 207351073980512
- Jessica FullerClinton, MD 207351376926352
- Jeffrey Jones, PAClinton, MD 207351174994198
- Quinta Lum, PACClinton, MD 207351568773943
Common questions
What is Tinsley Simonds Iselin, PA-C's NPI number?
Tinsley Simonds Iselin, PA-C's National Provider Identifier (NPI) is 1255682589, issued on Sep 26, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Tinsley Simonds Iselin, PA-C located?
The NPPES record lists a practice address at 8926 Woodyard RD, Clinton, MD, 20735. Phone: (301) 856-1682. Providers update this record themselves, so call before visiting.
How can I verify Tinsley Simonds Iselin, PA-C's license?
NPPES lists Maryland license number C0004858, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Tinsley Simonds Iselin, PA-C prescribe under Medicare Part D?
In 2024, Tinsley Simonds Iselin, PA-C had 29 Medicare Part D claims for 15 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions 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.