Heather Lynn Marks, MD
Internal Medicine Physician · Manchester, NH
Heather Lynn Marks, MD is an internal medicine physician with a practice address in Manchester, New Hampshire, and NPI 1568481398, issued on Jul 19, 2006. Check the license (New Hampshire 12310, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Heather Lynn Marks
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 12310 NH
Self-reported in NPPES; status is on the state search - Practice location
- 100 Hitchcock Way, Manchester, NH 03104
- Phone
- (603) 695-2500
- Enumerated
- Jul 19, 2006
- Record last updated
- Jan 12, 2026
- Fax
- (603) 640-1228
- Medicare enrollment
- Enrolled (PECOS I20050927001183); accepts Medicare assignment
- Medical or professional school
- University Of Massachusetts Medical School, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 673 in New Hampshire → Look up another NPI →
Also registered at 100 Hitchcock Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Angelina Androsova, PAPhysician Assistant1174829048
- Gerald Angoff, M.D.Cardiovascular Disease Physician1215999305
Verify Heather Lynn Marks in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 12310Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% more Medicare Part D claims than the average internal medicine physician in 2024
4,357 Medicare Part D claims for 373 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 58 claims were for opioids.
Most prescribed
- Atorvastatin Calcium319 claims
- Levothyroxine Sodium256 claims
- Amlodipine Besylate236 claims
- Lisinopril213 claims
- Simvastatin174 claims
- Omeprazole111 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): 81.6 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).
Industry payments in 2024: $19.57
1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 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.
One hospital affiliation
- Mary Hitchcock Memorial HospitalLebanon, NH · Acute Care Hospitals3 of 5 stars
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.
Heather Lynn Marks among 673 internal medicine physician records in New Hampshire
Heather Lynn Marks, MD is one of 673 internal medicine physician records with a practice address in New Hampshire. 81% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 50% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2001 · median 2005 among the 443 with a school on file
- Record last updated2026 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
95 internal medicine physician records list a practice address in Manchester
They are 95 of the 4,401 NPPES records with a practice address in Manchester, and 673 internal medicine physician records in New Hampshire.
All 673 in New Hampshire → Every provider in Manchester → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Belinda Castor, M.D.Manchester, NH 031041679517031
- Christine Cochrane, D.O.Manchester, NH 031041245215631
- Hetal Dave, MDManchester, NH 031041134198476
- Scott Hochgraf, MDManchester, NH 031041568403350
- Marc Levenson, M.D.Manchester, NH 031041568415891
- Paula Lovinski, M.D.Manchester, NH 031041174564132
- Michael Mayo-Smith, M.D.Manchester, NH 031041912975285
- Omair Mutib, M.DManchester, NH 031041679551550
Common questions
What is Heather Lynn Marks, MD's NPI number?
Heather Lynn Marks, MD's National Provider Identifier (NPI) is 1568481398, issued on Jul 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Heather Lynn Marks, MD located?
The NPPES record lists a practice address at 100 Hitchcock Way, Manchester, NH, 03104. Phone: (603) 695-2500. Providers update this record themselves, so call before visiting.
How can I verify Heather Lynn Marks, MD's license?
NPPES lists New Hampshire license number 12310, 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 Heather Lynn Marks, MD prescribe under Medicare Part D?
In 2024, Heather Lynn Marks, MD had 4,357 Medicare Part D claims for 373 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Heather Lynn Marks, MD's MIPS final score?
The 2023 MIPS final score is 81.6 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.