NPPES file of Aug 9, 2026

Gregory Lee Mesa, M.D.

Family Medicine Physician · Golden, CO

Gregory Lee Mesa, M.D. is a family medicine physician with a practice address in Golden, Colorado, and NPI 1417099490, issued on Feb 13, 2007. Check the license (Colorado 48078, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1417099490
Name
Gregory Lee Mesa
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
48078 CO
BP10025451 TX
Self-reported in NPPES; status is on the state search
Practice location
5920 Mcintyre St, Golden, CO 80403
Phone
(303) 949-1250
Enumerated
Feb 13, 2007
Record last updated
Jan 25, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicaid ID
49378341 CO
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 5920 Mcintyre St

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

  1. Clarence Adams, NPAdult Health Nurse Practitioner1609278290
  2. Mark Adams, MDGeriatric Medicine (Internal Medicine) Physician1881682888
  3. Maureen Allen, WHNPWomen's Health Nurse Practitioner1770525925
  4. Katherine Arthur, PA-CPhysician Assistant1710127659
  5. Myrtle Barlow, NP-CNurse Practitioner1629331186
  6. Sharon Blumenthal, FNPFamily Nurse Practitioner1861628802

Verify Gregory Lee Mesa in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 48078
    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 Colorado 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.

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94% fewer Medicare Part D claims than the average family medicine physician in 2024

219 Medicare Part D claims for 14 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.

  1. Gregory Mesa219
  2. Specialty average3,544

Most prescribed

  1. Amlodipine Besylate27 claims
  2. Levothyroxine Sodium25 claims
  3. Sertraline Hcl14 claims
  4. Clopidogrel13 claims
  5. Lumigan13 claims
  6. Levetiracetam12 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.

Industry payments in 2024: $26.33

1 payment: food and beverage; the largest payer was Merz North America, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Mesa$26.33
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Gregory Lee Mesa among 3,563 family medicine physician records in Colorado

Gregory Lee Mesa, M.D. is one of 3,563 family medicine physician records with a practice address in Colorado. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.

  • NPI issued2007 · 44% of these records are older, 42% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 58% of these records are
  • Record last updated2016 · 58% 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 Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

41 family medicine physician records list a practice address in Golden

They are 41 of the 1,371 NPPES records with a practice address in Golden, and 3,563 family medicine physician records in Colorado.

The 8 family medicine physician records with the nearest ZIP codes

  1. David Duncan, MDGolden, CO 804031427065705
  2. Ghassan GhuneimGolden, CO 804031669493805
  3. Melissa Gruen, MD, JDGolden, CO 804031487798021
  4. Rachel Hills, MDGolden, CO 804031538270939
  5. Roger Matthews, D.O.Golden, CO 804031104820570
  6. Donald Remaly, MDGolden, CO 804031497969125
  7. Linda Reschl, MDGolden, CO 804031265470256
  8. Danice Rinderknecht, MDGolden, CO 804031447315304

Common questions

What is Gregory Lee Mesa, M.D.'s NPI number?

Gregory Lee Mesa, M.D.'s National Provider Identifier (NPI) is 1417099490, issued on Feb 13, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Lee Mesa, M.D. located?

The NPPES record lists a practice address at 5920 Mcintyre St, Golden, CO, 80403. Phone: (303) 949-1250. Providers update this record themselves, so call before visiting.

How can I verify Gregory Lee Mesa, M.D.'s license?

NPPES lists Colorado license number 48078, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gregory Lee Mesa, M.D. prescribe under Medicare Part D?

In 2024, Gregory Lee Mesa, M.D. had 219 Medicare Part D claims for 14 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.