Mary Feiler Merkel, D.O.
Family Medicine Physician · Merrimack, NH
Mary Feiler Merkel, D.O. is a family medicine physician with a practice address in Merrimack, New Hampshire, and NPI 1558375709, issued on Jul 27, 2006. Check the license (New Hampshire 11669, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Mary Feiler Merkel
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 11669 NH
Self-reported in NPPES; status is on the state search - Practice location
- 294 Daniel Webster Hwy, Merrimack, NH 03054
- Phone
- (603) 424-4713
- Enumerated
- Jul 27, 2006
- Record last updated
- Jul 21, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicaid ID
- 30222163 NH
- Medicare enrollment
- Enrolled (PECOS I20080826000469); accepts Medicare assignment
- Medical or professional school
- New York College Of Osteo Medicine Of New York Institute Of Technology, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 294 Daniel Webster Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Josephine Adewumi, PA-CMedical Physician Assistant1942310024
- Thomas Astolfi, M.DFamily Medicine Physician1689650665
- Amy Brumfield, MDInternal Medicine Physician1639192420
- Archie Dickinson, MDFamily Medicine Physician1518143650
- Joyce Fitch, ARNPFamily Nurse Practitioner1922016708
- Edward Hall, M.D.Family Medicine Physician1083622674
Verify Mary Feiler Merkel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 11669Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% more Medicare Part D claims than the average family medicine physician in 2024
4,723 Medicare Part D claims for 377 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 93 claims were for opioids.
Most prescribed
- Atorvastatin Calcium306 claims
- Levothyroxine Sodium274 claims
- Amlodipine Besylate173 claims
- Lisinopril161 claims
- Metformin Hcl Er137 claims
- Lorazepam133 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 practice group's MIPS final score for 2023 (Medicare payment program): 69.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
2 hospitals and group practices
- Mary Hitchcock Memorial HospitalLebanon, NH · Acute Care Hospitals3 of 5 stars
- Dartmouth-Hitchcock ClinicMerrimack, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
16 family medicine physician records list a practice address in Merrimack
They are 16 of the 270 NPPES records with a practice address in Merrimack, and 816 family medicine physician records in New Hampshire.
All 16 in Merrimack → All 816 in New Hampshire → Every provider in Merrimack →
Other family medicine physician records in New Hampshire
- Ruba Abdullah, MDConcord, NH1336871524
- Iryna Aberkorn, MDLebanon, NH1780846071
- Bruce Abramowitz, DOWindham, NH1801276167
- Francis Adams, MDLebanon, NH1578581898
- Glenn Adams, DOGroveton, NH1952387714
- Karin Adelman, M.D.Nashua, NH1982674354
- Sangita Agarwal, MDDover, NH1912953316
- Andres Aguilera-Fish, MDLittleton, NH1578183992
- Noor Al Humaidhi, MDExeter, NH1821502329
- Keenan Al-Hojerry, MDPortsmouth, NH1063468981
Common questions
What is Mary Feiler Merkel, D.O.'s NPI number?
Mary Feiler Merkel, D.O.'s National Provider Identifier (NPI) is 1558375709, issued on Jul 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary Feiler Merkel, D.O. located?
The NPPES record lists a practice address at 294 Daniel Webster Hwy, Merrimack, NH, 03054. Phone: (603) 424-4713. Providers update this record themselves, so call before visiting.
How can I verify Mary Feiler Merkel, D.O.'s license?
NPPES lists New Hampshire license number 11669, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mary Feiler Merkel, D.O. prescribe under Medicare Part D?
In 2024, Mary Feiler Merkel, D.O. had 4,723 Medicare Part D claims for 377 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Mary Feiler Merkel, D.O.'s MIPS final score?
The 2023 MIPS final score is 69.4 of 100, reported for the practice group. 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.