Registry data as of Aug 27, 2026

Mark Dwinell, M.D.

Internal Medicine Physician · Farmington, NM

Mark Dwinell, M.D. is an internal medicine physician with a practice address in Farmington, New Mexico, and NPI 1639106099, issued on Jun 28, 2006. Check the license (New Mexico MD2013-0979, as entered in NPPES) on the New Mexico Medical Board; 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
1639106099
Name
Mark Dwinell
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD2013-0979 NM
Self-reported in NPPES; status is on the state search
Practice location
407 S Schwartz Ave, Farmington, NM 87401
Phone
(505) 609-6730
Enumerated
Jun 28, 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.
Download card Updates feed

Also registered at 407 S Schwartz Ave

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

  1. Jessica Conklin, CNPPediatric Nurse Practitioner1275981557
  2. Carol Connelly, CNPPediatric Nurse Practitioner1609969245
  3. Marc Flitter, M.D.Surgery Physician1649203266
  4. Sudhakar GirotraInterventional Cardiology Physician1710184163
  5. James Goolsby, MDCardiovascular Disease Physician1811998529
  6. Tracie Grace, FNP-CFamily Nurse Practitioner1356625917

Verify Mark Dwinell in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Mexico Medical Board
    Search for license MD2013-0979
    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 Mexico 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.

43% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,592 Medicare Part D claims for 226 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. 56 claims were for opioids.

  1. Mark Dwinell1,592
  2. Specialty average2,785

Most prescribed

  1. Atorvastatin Calcium102 claims
  2. Amlodipine Besylate80 claims
  3. Losartan Potassium65 claims
  4. Lisinopril61 claims
  5. Levothyroxine Sodium59 claims
  6. Tamsulosin Hcl47 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.

27 internal medicine physician records list a Farmington practice address

They are 27 of the 1,590 NPPES records with a Farmington practice address, and 814 internal medicine physician records in New Mexico.

Other internal medicine physician records in New Mexico

  1. Ahmed Abbasi, MDAlbuquerque, NM1871233254
  2. Yara Abdou, MDAlbuquerque, NM1578981114
  3. Louise Abel, MDSanta Fe, NM1821016593
  4. William Abeyta, M.D.Albuquerque, NM1346253655
  5. Zain AbidinAlbuquerque, NM1285384735
  6. Ferial Abood, MDAlamogordo, NM1184803843
  7. Sergio Abriola, MD FACC RCSSanta Rosa, NM1588757322
  8. Jacqueline Acevedo Gonzalez, MDPortales, NM1407004583
  9. David Aday, MDAlamogordo, NM1578675765
  10. Harriet Adeleke, MDLas Cruces, NM1487270880

Common questions

What is Mark Dwinell, M.D.'s NPI number?

Mark Dwinell, M.D.'s National Provider Identifier (NPI) is 1639106099, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Dwinell, M.D. located?

The NPPES record lists a practice address at 407 S Schwartz Ave, Farmington, NM, 87401. Phone: (505) 609-6730. Providers update this record themselves, so call before visiting.

How can I verify Mark Dwinell, M.D.'s license?

NPPES lists New Mexico license number MD2013-0979, as entered by the provider. Search the New Mexico Medical Board at https://www.nmmb.state.nm.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark Dwinell, M.D. prescribe under Medicare Part D?

In 2024, Mark Dwinell, M.D. had 1,592 Medicare Part D claims for 226 beneficiaries; the average among internal medicine physician prescribers was 2,785. 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.