Registry data as of Aug 27, 2026

Mark Blackwood, MD

Family Medicine Physician · Durham, NH

Mark Blackwood, MD is a family medicine physician with a practice address in Durham, New Hampshire, and NPI 1376599217, issued on May 25, 2006. Check the license (New Hampshire 8732, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1376599217
Name
Mark Blackwood
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
8732 NH
Self-reported in NPPES; status is on the state search
Practice location
36 Madbury RD, Durham, NH 03824
Phone
(603) 868-5080
Enumerated
May 25, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 36 Madbury RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kenneth Shuman, MDFamily Medicine Physician1043266059
  2. Talley Slate, APRNFamily Nurse Practitioner1609354224

Verify Mark Blackwood in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Hampshire Board of Medicine
    Search for license 8732
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the New Hampshire license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

74% fewer Medicare Part D claims than the average family medicine physician in 2024

907 Medicare Part D claims for 376 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 29 claims were for opioids.

  1. Mark Blackwood907
  2. Specialty average3,519

Most prescribed

  1. Atorvastatin Calcium65 claims
  2. Amlodipine Besylate45 claims
  3. Levothyroxine Sodium45 claims
  4. Omeprazole37 claims
  5. Lisinopril34 claims
  6. Eliquis30 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.

3 family medicine physician records list a Durham practice address

They are 3 of the 132 NPPES records with a Durham practice address, and 810 family medicine physician records in New Hampshire.

Other family medicine physician records in New Hampshire

  1. Lauren Abbott, APRNDerry, NH1093137820
  2. Peter Abdalla, DOConcord, NH1013279504
  3. Ruba Abdullah, MDConcord, NH1336871524
  4. Iryna Aberkorn, MDLebanon, NH1780846071
  5. Bruce Abramowitz, DOWindham, NH1801276167
  6. Francis Adams, MDLebanon, NH1578581898
  7. Glenn Adams, DOGroveton, NH1952387714
  8. Karin Adelman, M.D.Nashua, NH1982674354
  9. Sangita Agarwal, MDDover, NH1912953316
  10. Andres Aguilera-Fish, MDLittleton, NH1578183992

Common questions

What is Mark Blackwood, MD's NPI number?

Mark Blackwood, MD's National Provider Identifier (NPI) is 1376599217, issued on May 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Blackwood, MD located?

The NPPES record lists a practice address at 36 Madbury RD, Durham, NH, 03824. Phone: (603) 868-5080. Providers update this record themselves, so call before visiting.

How can I verify Mark Blackwood, MD's license?

NPPES lists New Hampshire license number 8732, 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 Mark Blackwood, MD prescribe under Medicare Part D?

In 2024, Mark Blackwood, MD had 907 Medicare Part D claims for 376 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.