Eugene Howard Seymour, M.D.
Internal Medicine Physician · Aspen, CO
Eugene Howard Seymour, M.D. is an internal medicine physician with a practice address in Aspen, Colorado, and NPI 1629008057, issued on Jul 3, 2006. Check the license (Colorado 23659, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Eugene Howard Seymour
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 23659 CO
Self-reported in NPPES; status is on the state search - Practice location
- 390 N Spring St, Aspen, CO 81611
- Phone
- (310) 486-5677
- Enumerated
- Jul 3, 2006
- Record last updated
- Jul 18, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (630) 604-6402
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Verify Eugene Howard Seymour in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 23659Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
16 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Eugene Howard Seymour among 2,046 internal medicine physician records in Colorado
Eugene Howard Seymour, 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 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 60% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2012 · 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).
9 internal medicine physician records list a practice address in Aspen
They are 9 of the 301 NPPES records with a practice address in Aspen, and 2,046 internal medicine physician records in Colorado.
All 2,046 in Colorado → Every provider in Aspen → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Bryan Gieszl, MDAspen, CO 816111881644649
- Paula Kadison, M.D.Aspen, CO 816111992987838
- Ann Mass, MDAspen, CO 816111598769358
- Caroline Mears Norris, DOAspen, CO 816111164981270
- Barry Mink, M.D.Aspen, CO 816111720082217
- Carl Schiller, MDAspen, CO 816111053315606
- Alana Shah, M.D.Aspen, CO 816111538546544
- Susan Zimet, M.D.Aspen, CO 816111063418242
Common questions
What is Eugene Howard Seymour, M.D.'s NPI number?
Eugene Howard Seymour, M.D.'s National Provider Identifier (NPI) is 1629008057, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Eugene Howard Seymour, M.D. located?
The NPPES record lists a practice address at 390 N Spring St, Aspen, CO, 81611. Phone: (310) 486-5677. Providers update this record themselves, so call before visiting.
How can I verify Eugene Howard Seymour, M.D.'s license?
NPPES lists Colorado license number 23659, 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 Eugene Howard Seymour, M.D. prescribe under Medicare Part D?
In 2024, Eugene Howard Seymour, M.D. had 16 Medicare Part D claims; 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.