Mark R. Blackwood, MD
Family Medicine Physician · Durham, NH
Mark R. 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.
- Name
- Mark R. 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
- Record last updated
- Feb 17, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (603) 868-7440
- Medicaid IDs
- 3075907 NH
1376599217 ME - Entity
- Type 1 · individual
8 nearest family medicine physician records → All 816 in New Hampshire → Look up another NPI →
Also registered at 36 Madbury RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kenneth Shuman, MDFamily Medicine Physician1043266059
- Talley Slate, APRNFamily Nurse Practitioner1609354224
Verify Mark R. Blackwood in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 8732Check 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 family medicine physician in 2024
907 Medicare Part D claims for 376 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. 29 claims were for opioids.
Most prescribed
- Atorvastatin Calcium65 claims
- Amlodipine Besylate45 claims
- Levothyroxine Sodium45 claims
- Omeprazole37 claims
- Lisinopril34 claims
- 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.
Mark R. Blackwood among 816 family medicine physician records in New Hampshire
Mark R. Blackwood, MD is one of 816 family medicine physician records with a practice address in New Hampshire. 74% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 43% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2014 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 family medicine physician records list a practice address in Durham
They are 3 of the 132 NPPES records with a practice address in Durham, and 816 family medicine physician records in New Hampshire.
All 816 in New Hampshire → Every provider in Durham → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Dominique Carpentier, M.D.Durham, NH 038241720043516
- Kenneth Shuman, MDDurham, NH 038241043266059
- Bhavik Bhulabhai, M.D.Barrington, NH 038251689052623
- David Cooper, MDBarrington, NH 038251780654541
- Tracy Hamill, MDBarrington, NH 038251124109145
- Joan Smith, MDBarrington, NH 038251689613242
- Antara Chakraborty, MDDover, NH 038201124721063
- Lynn Devlin, ARNPDover, NH 038201952321622
Common questions
What is Mark R. Blackwood, MD's NPI number?
Mark R. 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 R. 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 R. 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 R. Blackwood, MD prescribe under Medicare Part D?
In 2024, Mark R. Blackwood, MD had 907 Medicare Part D claims for 376 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.