Marcy G. Southwell, PA C
Medical Physician Assistant · Concord, NH
Marcy G. Southwell, PA C is a medical physician assistant with a practice address in Concord, New Hampshire, and NPI 1306882881, issued on Jun 21, 2006. Check the license (New Hampshire 0391P, as entered in NPPES) with the New Hampshire board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marcy G. Southwell
- Credential
- PA C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 0391P NH
Self-reported in NPPES; status is on the state search - Practice location
- 60 Commercial St, Concord, NH 03301
- Phone
- (603) 228-1763
- Enumerated
- Jun 21, 2006
- Record last updated
- Dec 14, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (603) 228-7088
- Medicaid ID
- 30332153 NH
- Medicare enrollment
- Enrolled (PECOS I20041108000420); 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 60 Commercial St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Baier, MDGastroenterology Physician1326133539
- Edward Benoit, MDFamily Medicine Physician1033151154
- Lukasz Biernat, M.D.Internal Medicine Physician1578773560
- Robert Chehade, M.D.Gastroenterology Physician1174713275
- Adel FarhoudGastroenterology Physician1497240246
- Rebecca Fisher, PA CMedical Physician Assistant1568554921
Verify Marcy G. Southwell 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 0391PCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% fewer Medicare Part D claims than the average medical physician assistant in 2024
856 Medicare Part D claims for 145 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium122 claims
- Omeprazole83 claims
- Spironolactone57 claims
- Mesalamine50 claims
- Linzess47 claims
- Xifaxan38 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.
The MIPS final score for 2023 (Medicare payment program): 89.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $57.70
3 payments; by number, the most common kind was food and beverage; the largest payer was Ferring Pharmaceuticals Inc. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Concord Hospital IncConcord, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marcy G. Southwell among 248 medical physician assistant records in New Hampshire
Marcy G. Southwell, PA C 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 60% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2000 · median 2010 among the 162 with a school on file
- Record last updated2020 · 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).
32 medical physician assistant records list a practice address in Concord
They are 32 of the 3,103 NPPES records with a practice address in Concord, and 248 medical physician assistant records in New Hampshire.
All 248 in New Hampshire → Every provider in Concord → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Jack Cook, PA-CConcord, NH 033011194720052
- Heather Davis, PAConcord, NH 033011174558241
- Stacy Filion, PA-CConcord, NH 033011386697282
- Brian Fisher, PAConcord, NH 033011336183201
- Jacqueline Fournier Cook, PAConcord, NH 033011891713905
- Beth Geralds, PA-CConcord, NH 033011790763340
- James Maloney, PA-CConcord, NH 033011821014184
- Heather Parent, PA-CConcord, NH 033011598798522
Common questions
What is Marcy G. Southwell, PA C's NPI number?
Marcy G. Southwell, PA C's National Provider Identifier (NPI) is 1306882881, issued on Jun 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marcy G. Southwell, PA C located?
The NPPES record lists a practice address at 60 Commercial St, Concord, NH, 03301. Phone: (603) 228-1763. Providers update this record themselves, so call before visiting.
How can I verify Marcy G. Southwell, PA C's license?
NPPES lists New Hampshire license number 0391P, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.
How much does Marcy G. Southwell, PA C prescribe under Medicare Part D?
In 2024, Marcy G. Southwell, PA C had 856 Medicare Part D claims for 145 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
What is Marcy G. Southwell, PA C's MIPS final score?
The 2023 MIPS final score is 89.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.