William A. Baker, MD
Cardiovascular Disease Physician · Denver, CO
William A. Baker, MD is a cardiovascular disease physician with a practice address in Denver, Colorado, and NPI 1740209337, issued on Jul 18, 2006. Check the license (Colorado 35205, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- William A. Baker
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 35205 CO
Self-reported in NPPES; status is on the state search - Practice location
- 2045 Franklin St, Denver, CO 80205
- Phone
- (303) 338-4545
- Enumerated
- Jul 18, 2006
- Record last updated
- Jun 21, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 77035046 CO
- Medicare enrollment
- Enrolled (PECOS I20050104000492); accepts Medicare assignment
- Medical or professional school
- Johns Hopkins University School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 332 in Colorado → Look up another NPI →
Also registered at 2045 Franklin St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Billie AbbottGastroenterology Registered Nurse1487798187
- Timothy Adair, PAMedical Physician Assistant1356485072
- Patricia Adams, RNAmbulatory Care Registered Nurse1811024862
- Kim Adcock, MDDiagnostic Radiology Physician1477696920
- Jimmy Agudo, RNRegistered Nurse1619205481
- Margaret AhlCardiovascular Invasive Specialist/Technologist1073657862
Verify William A. Baker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 35205Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
About as many Medicare Part D claims as the average cardiovascular disease physician in 2024
3,091 Medicare Part D claims for 578 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Metoprolol Succinate264 claims
- Atorvastatin Calcium207 claims
- Rosuvastatin Calcium204 claims
- Amlodipine Besylate171 claims
- Ezetimibe166 claims
- Furosemide163 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
- Colorado Permanente Medical Group PCDenver, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William A. Baker among 332 cardiovascular disease physician records in Colorado
William A. Baker, MD is one of 332 cardiovascular disease physician records with a practice address in Colorado. 84% 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 18% of them.
- NPI issued2006 · 18% of these records are older, 48% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1989 · median 2003 among the 221 with a school on file
- Record last updated2021 · 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 207RC0000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in Colorado
There are 332 cardiovascular disease physician records in Colorado.
All 332 in Colorado → Every provider in Denver → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Joseph Abruzzo, M.D.Denver, CO 802051336276385
- Steven Atchley, MDDenver, CO 802051699802694
- Adam Betkowski, M.D.Denver, CO 802051225165269
- Jennifer Dorosz, MDDenver, CO 802051043396807
- Michael Fisher, MDDenver, CO 802051649307687
- Lawrence Hergott, MDDenver, CO 802051134219819
- Mark Jeong, M.D.Denver, CO 802051447351010
- Madhukar Kollengode, MDDenver, CO 802051669606711
Common questions
What is William A. Baker, MD's NPI number?
William A. Baker, MD's National Provider Identifier (NPI) is 1740209337, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William A. Baker, MD located?
The NPPES record lists a practice address at 2045 Franklin St, Denver, CO, 80205. Phone: (303) 338-4545. Providers update this record themselves, so call before visiting.
How can I verify William A. Baker, MD's license?
NPPES lists Colorado license number 35205, 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 William A. Baker, MD prescribe under Medicare Part D?
In 2024, William A. Baker, MD had 3,091 Medicare Part D claims for 578 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.