Steven Schlosser, M.D.
Internal Medicine Physician · Boulder, CO
Steven Schlosser, M.D. is an internal medicine physician with a practice address in Boulder, Colorado, and NPI 1790191864, issued on Jul 9, 2014. Check the license (Colorado 33336, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Steven Schlosser
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 33336 CO
G50288 CA
133417 FL
Self-reported in NPPES; status is on the state search - Practice location
- 3080 Pearl Pkwy # D107, Boulder, CO 80301
- Phone
- (310) 948-4433
- Enumerated
- Jul 9, 2014
- Record last updated
- Apr 24, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Verify Steven Schlosser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 33336Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
12 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.
Steven Schlosser among 2,046 internal medicine physician records in Colorado
Steven Schlosser, 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 2014, is newer than 76% of them.
- NPI issued2014 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2018 · 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).
74 internal medicine physician records list a practice address in Boulder
They are 74 of the 5,635 NPPES records with a practice address in Boulder, and 2,046 internal medicine physician records in Colorado.
All 2,046 in Colorado → Every provider in Boulder → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kristina Anton-Schnell, MDBoulder, CO 803011477577153
- Steven Brasch, M.D.Boulder, CO 803011366547564
- Bradley Fanestil, M.D.Boulder, CO 803011023156254
- Simsimran Grover, M.D.Boulder, CO 803011992141923
- Fabiana Monte Alegre Olmos Fernandez, MDBoulder, CO 803011588288013
- Gary Stec, MDBoulder, CO 803011912979709
- Hillary Browne, MDBoulder, CO 803021316936198
- Dawn Hutchinson, MDBoulder, CO 803021457348724
Common questions
What is Steven Schlosser, M.D.'s NPI number?
Steven Schlosser, M.D.'s National Provider Identifier (NPI) is 1790191864, issued on Jul 9, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Steven Schlosser, M.D. located?
The NPPES record lists a practice address at 3080 Pearl Pkwy # D107, Boulder, CO, 80301. Phone: (310) 948-4433. Providers update this record themselves, so call before visiting.
How can I verify Steven Schlosser, M.D.'s license?
NPPES lists Colorado license number 33336, 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 Steven Schlosser, M.D. prescribe under Medicare Part D?
In 2024, Steven Schlosser, M.D. had 12 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.