Mark C. Winslow, DO
Family Medicine Physician · Denver, CO
Mark C. Winslow, DO is a family medicine physician with a practice address in Denver, Colorado, and NPI 1598790198, issued on Jul 11, 2006. Check the license (Colorado DR.0034745, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark C. Winslow
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- DR.0034745 CO
0320000502 CO
34745 CO
Self-reported in NPPES; status is on the state search - Practice location
- 8158 E 5TH Ave Ste 220, Denver, CO 80230
- Phone
- (303) 856-3568
- Enumerated
- Jul 11, 2006
- Record last updated
- Aug 23, 2022
- Fax
- (303) 648-5709
- Medicaid ID
- 01347451 CO
- Medicare enrollment
- Enrolled (PECOS I20050228000410); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Verify Mark C. Winslow in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0034745Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% fewer Medicare Part D claims than the average family medicine physician in 2024
2,402 Medicare Part D claims for 254 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 25 claims were for opioids.
Most prescribed
- Atorvastatin Calcium184 claims
- Levothyroxine Sodium121 claims
- Losartan Potassium93 claims
- Amlodipine Besylate85 claims
- Lisinopril83 claims
- Rosuvastatin Calcium79 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.
Bills Medicare through one group practice
- Portercare Adventist Health SystemCastle Rock, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark C. Winslow among 3,563 family medicine physician records in Colorado
Mark C. Winslow, DO is one of 3,563 family medicine physician records with a practice address in Colorado. 76% 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, 56% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1994 · median 2008 among the 2,077 with a school on file
- Record last updated2022 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
457 family medicine physician records list a practice address in Denver
They are 457 of the 25,068 NPPES records with a practice address in Denver, and 3,563 family medicine physician records in Colorado.
All 3,563 in Colorado → Every provider in Denver → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Stephanie Gold, M.D.Denver, CO 802301093072837
- Elizabeth Grace, M.D.Denver, CO 802301265688931
- Alexis Hoffkling, MD MSDenver, CO 802301295239697
- Kathryn Kolonic, DODenver, CO 802301598909558
- Wei-San MondieDenver, CO 802301013493220
- Roxanne Radi, MDDenver, CO 802301982023032
- Kathleen Reims, M.D.Denver, CO 802301750402301
- Lynn Strange, M.D.Denver, CO 802301477558393
Common questions
What is Mark C. Winslow, DO's NPI number?
Mark C. Winslow, DO's National Provider Identifier (NPI) is 1598790198, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark C. Winslow, DO located?
The NPPES record lists a practice address at 8158 E 5TH Ave Ste 220, Denver, CO, 80230. Phone: (303) 856-3568. Providers update this record themselves, so call before visiting.
How can I verify Mark C. Winslow, DO's license?
NPPES lists Colorado license number DR.0034745, 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 Mark C. Winslow, DO prescribe under Medicare Part D?
In 2024, Mark C. Winslow, DO had 2,402 Medicare Part D claims for 254 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.