Mark Steven Clark, PA
Medical Physician Assistant · Greenfield, NH
Mark Steven Clark, PA is a medical physician assistant with a practice address in Greenfield, New Hampshire, and NPI 1235115213, issued on Dec 21, 2005. Check the license (New Hampshire 0362, as entered in NPPES) with the New Hampshire board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Steven Clark
- Credential
- PA
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 0362 NH
Self-reported in NPPES; status is on the state search - Practice location
- 1 Verney Drive, Greenfield, NH 03047
- Phone
- (603) 305-0628
- Enumerated
- Dec 21, 2005
- Record last updated
- Mar 18, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicaid ID
- 30331005 NH
- Medicare enrollment
- Enrolled (PECOS I20171226001103); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 248 in New Hampshire → Look up another NPI →
Also registered at 1 Verney Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark Steven Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
Search for license 0362Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average medical physician assistant in 2024
296 Medicare Part D claims for 266 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Amoxicillin-Clavulanate Potass54 claims
- Nitrofurantoin Mono-Macro46 claims
- Azithromycin22 claims
- Sulfamethoxazole-Trimethoprim22 claims
- Prednisone19 claims
- Cephalexin18 claims
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.
Bills Medicare through one group practice
- Urgent Care Operations PCNorth Andover, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Steven Clark among 248 medical physician assistant records in New Hampshire
Mark Steven Clark, PA is one of 248 medical physician assistant records with a practice address in New Hampshire. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1994 · median 2010 among the 162 with a school on file
- Record last updated2014 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 medical physician assistant record lists a practice address in Greenfield
They are 1 of the 61 NPPES records with a practice address in Greenfield, and 248 medical physician assistant records in New Hampshire.
All 248 in New Hampshire → Every provider in Greenfield → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Kathryn Wrynn, P.A.Goffstown, NH 030451982609814
- Brittney Rodgers, PAHudson, NH 030511316565484
- Charleen Thorburn, PA-CEpping, NH 030421922329697
- Andrea Bourke, RPA-CLondonderry, NH 030531194070466
- Nathan Hand, PA CLondonderry, NH 030531659314961
- Robert Massey, PA-CLondonderry, NH 030531003825407
- Allison Moore, PA-C, RD, CDELondonderry, NH 030531033453428
- Dang Nguyen, PALondonderry, NH 030531558669317
Common questions
What is Mark Steven Clark, PA's NPI number?
Mark Steven Clark, PA's National Provider Identifier (NPI) is 1235115213, issued on Dec 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Steven Clark, PA located?
The NPPES record lists a practice address at 1 Verney Drive, Greenfield, NH, 03047. Phone: (603) 305-0628. Providers update this record themselves, so call before visiting.
How can I verify Mark Steven Clark, PA's license?
NPPES lists New Hampshire license number 0362, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Steven Clark, PA prescribe under Medicare Part D?
In 2024, Mark Steven Clark, PA had 296 Medicare Part D claims for 266 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.