Samuel Douglas Richesin, M.D.
Internal Medicine Physician · Denver, CO
Samuel Douglas Richesin, M.D. is an internal medicine physician with a practice address in Denver, Colorado, and NPI 1336313196, issued on Apr 14, 2008. Check the license (Colorado 49956, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Samuel Douglas Richesin
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 49956 CO
Self-reported in NPPES; status is on the state search - Practice location
- 501 28TH St, Denver, CO 80205
- Phone
- (303) 602-6333
- Enumerated
- Apr 14, 2008
- Record last updated
- Dec 13, 2022
- Fax
- (303) 436-4610
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Also registered at 501 28TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Anderson, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1497988257
- Joshua Blum, M.D.Internal Medicine Physician1770526881
- Carlie Coates RathDental Hygienist1750188009
- Sarah CookDental Hygienist1144830845
- Valerie Cuzella, RDHDental Hygienist1578281341
- Kristi Dougherty, RDHDental Hygienist1689285967
Verify Samuel Douglas Richesin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 49956Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% more Medicare Part D claims than the average internal medicine physician in 2024
4,488 Medicare Part D claims for 404 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 506 claims were for opioids.
Most prescribed
- Atorvastatin Calcium327 claims
- Amlodipine Besylate171 claims
- Oxycodone Hcl156 claims
- Omeprazole148 claims
- Oxycodone-Acetaminophen144 claims
- Diclofenac Sodium111 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.
Samuel Douglas Richesin among 2,046 internal medicine physician records in Colorado
Samuel Douglas Richesin, M.D. is one of 2,046 internal medicine physician records with a practice address in Colorado. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 61% of them.
- NPI issued2008 · 61% of these records are older, 35% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2022 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
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.
All 2,046 in Colorado → Every provider in Denver → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jennifer Adams, MDDenver, CO 802051386663946
- Joshua Blum, M.D.Denver, CO 802051770526881
- Sarah Brodhead, MDDenver, CO 802051851438121
- Daniela Grayeb, MDDenver, CO 802051700852886
- Everette Jones, MDDenver, CO 802051376518522
- Cathie Korey, MDDenver, CO 802051962484253
- David LeonardDenver, CO 802051801823422
- Daniel Lewis, MDDenver, CO 802051598784985
Common questions
What is Samuel Douglas Richesin, M.D.'s NPI number?
Samuel Douglas Richesin, M.D.'s National Provider Identifier (NPI) is 1336313196, issued on Apr 14, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Samuel Douglas Richesin, M.D. located?
The NPPES record lists a practice address at 501 28TH St, Denver, CO, 80205. Phone: (303) 602-6333. Providers update this record themselves, so call before visiting.
How can I verify Samuel Douglas Richesin, M.D.'s license?
NPPES lists Colorado license number 49956, 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 Samuel Douglas Richesin, M.D. prescribe under Medicare Part D?
In 2024, Samuel Douglas Richesin, M.D. had 4,488 Medicare Part D claims for 404 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.