NPPES file of Aug 9, 2026

Donald Alan Forest, M.D.

Internal Medicine Physician · Denver, CO

Donald Alan Forest, M.D. is an internal medicine physician with a practice address in Denver, Colorado, and NPI 1588664841, issued on Jul 28, 2005. Check the license (Colorado 30816, 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
1588664841
Name
Donald Alan Forest
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
30816 CO
Self-reported in NPPES; status is on the state search
Practice location
3540 S Poplar St, Denver, CO 80237
Phone
(303) 226-0013
Enumerated
Jul 28, 2005
Record last updated
Feb 20, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(303) 757-6148
Medicaid ID
01308162 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 3540 S Poplar St

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

  1. Amanda Andersen, D.C.Chiropractor1225382153
  2. Eric Braden, PH.D.Clinical Psychologist1215955612
  3. Thomas Chisholm, M.D.Family Medicine Physician1306846688
  4. Julie Cohen, PA-CMedical Physician Assistant1245230614
  5. Scott Cunningham, M DInternal Medicine Physician1649339722
  6. Susan Geersen, D.C.Chiropractor1144552902

Verify Donald Alan Forest in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 30816
    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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11% more Medicare Part D claims than the average internal medicine physician in 2024

3,524 Medicare Part D claims for 363 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 62 claims were for opioids.

  1. Donald Forest3,524
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium274 claims
  2. Levothyroxine Sodium227 claims
  3. Lisinopril185 claims
  4. Amlodipine Besylate165 claims
  5. Simvastatin121 claims
  6. Allopurinol98 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: $67.60

3 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. 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.

  1. Donald Forest$67.60
  2. Specialty average$1,303.06

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

493 internal medicine physician records list a practice address in Denver

They are 493 of the 25,068 NPPES records with a practice address in Denver, and 2,046 internal medicine physician records in Colorado.

Other internal medicine physician records in Colorado

  1. Emily Aaron, MDDenver, CO1205256971
  2. David Abbey, MS MDFort Collins, CO1568483196
  3. Tyler Abbey, DOGreeley, CO1730572694
  4. Sahar Abdelqader, MDLongmont, CO1366600710
  5. Ahmed Abdulrahman, MDPueblo, CO1093425068
  6. Durant Abernethy, M.D.Frisco, CO1427289040
  7. Alan Aboaf, MDCentennial, CO1003866393
  8. Adam Abraham, MDAurora, CO1720178304
  9. Phebe Abraham, MDGreeley, CO1558980540
  10. Richard Abrams, M.D.Denver, CO1174645386

Common questions

What is Donald Alan Forest, M.D.'s NPI number?

Donald Alan Forest, M.D.'s National Provider Identifier (NPI) is 1588664841, issued on Jul 28, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Donald Alan Forest, M.D. located?

The NPPES record lists a practice address at 3540 S Poplar St, Denver, CO, 80237. Phone: (303) 226-0013. Providers update this record themselves, so call before visiting.

How can I verify Donald Alan Forest, M.D.'s license?

NPPES lists Colorado license number 30816, 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 Donald Alan Forest, M.D. prescribe under Medicare Part D?

In 2024, Donald Alan Forest, M.D. had 3,524 Medicare Part D claims for 363 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.