Stanley F. Siefer, M.D.
Emergency Medicine Physician · Englewood, CO
Stanley F. Siefer, M.D. is an emergency medicine physician with a practice address in Englewood, Colorado, and NPI 1063490159, issued on Jan 9, 2006. Check the license (Colorado 17908, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Stanley F. Siefer
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 17908 CO
Self-reported in NPPES; status is on the state search - Practice location
- 901 W Hampden Ave, Englewood, CO 80110
- Phone
- (303) 761-1699
- Enumerated
- Jan 9, 2006
- Record last updated
- May 14, 2023
- Fax
- (303) 761-4099
- Medicaid ID
- 01179084 CO
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,434 in Colorado → Look up another NPI →
Also registered at 901 W Hampden Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karen Snider, FNP-CFamily Nurse Practitioner1649058017
Verify Stanley F. Siefer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 17908Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average emergency medicine physician in 2024
11 Medicare Part D claims, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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.
Stanley F. Siefer among 1,434 emergency medicine physician records in Colorado
Stanley F. Siefer, M.D. is one of 1,434 emergency medicine physician records with a practice address in Colorado. 77% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 57% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2023 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
38 emergency medicine physician records list a practice address in Englewood
They are 38 of the 2,840 NPPES records with a practice address in Englewood, and 1,434 emergency medicine physician records in Colorado.
All 1,434 in Colorado → Every provider in Englewood → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Martin Strand, M.D.Englewood, CO 801101255319448
- Craig Brooks, M.D.Castle Rock, CO 801091184885758
- James Cusick, MD FACEPEnglewood, CO 801111073636809
- Casey Dart, M.D.Englewood, CO 801111114304193
- Amber Fouts, MDEnglewood, CO 801111245670405
- Laurel Gardner, MDGreenwood Village, CO 801111851852784
- Shelah Hayes, MDCastle Rock, CO 801091699279687
- Kristen HertzlerEnglewood, CO 801111972946416
Common questions
What is Stanley F. Siefer, M.D.'s NPI number?
Stanley F. Siefer, M.D.'s National Provider Identifier (NPI) is 1063490159, issued on Jan 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stanley F. Siefer, M.D. located?
The NPPES record lists a practice address at 901 W Hampden Ave, Englewood, CO, 80110. Phone: (303) 761-1699. Providers update this record themselves, so call before visiting.
How can I verify Stanley F. Siefer, M.D.'s license?
NPPES lists Colorado license number 17908, 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 Stanley F. Siefer, M.D. prescribe under Medicare Part D?
In 2024, Stanley F. Siefer, M.D. had 11 Medicare Part D claims; the average among emergency medicine physician prescribers was 226. 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.