Cassandra Ann Workman, M.D.
Family Medicine Physician · Denver, CO
Cassandra Ann Workman, M.D. is a family medicine physician with a practice address in Denver, Colorado, and NPI 1225150287, issued on Apr 3, 2007. Check the license on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Cassandra Ann Workman
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- Practice location
- 8190 E 1St Ave, Denver, CO 80230
- Phone
- (303) 731-8916
- Enumerated
- Apr 3, 2007
- Record last updated
- Sep 26, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 8190 E 1St Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Cassandra Ann Workman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average family medicine physician in 2024
196 Medicare Part D claims for 24 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Atorvastatin Calcium13 claims
- Amlodipine Besylate11 claims
- Levothyroxine Sodium11 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.
Cassandra Ann Workman among 3,563 family medicine physician records in Colorado
Cassandra Ann Workman, M.D. 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 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 42% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2018 · 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 Cassandra Ann Workman, M.D.'s NPI number?
Cassandra Ann Workman, M.D.'s National Provider Identifier (NPI) is 1225150287, issued on Apr 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Cassandra Ann Workman, M.D. located?
The NPPES record lists a practice address at 8190 E 1St Ave, Denver, CO, 80230. Phone: (303) 731-8916. Providers update this record themselves, so call before visiting.
How can I verify Cassandra Ann Workman, M.D.'s license?
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 Cassandra Ann Workman, M.D. prescribe under Medicare Part D?
In 2024, Cassandra Ann Workman, M.D. had 196 Medicare Part D claims for 24 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.