Ernest R. Castro, MD
Family Medicine Physician · Golden, CO
Ernest R. Castro, MD is a family medicine physician with a practice address in Golden, Colorado, and NPI 1982785721, issued on Oct 18, 2006. Check the license (Colorado 44082, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ernest R. Castro
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 44082 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1707 Cole Blvd, Golden, CO 80401
- Phone
- (303) 233-8295
- Enumerated
- Oct 18, 2006
- Record last updated
- Oct 4, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (303) 233-8443
- Medicare enrollment
- Enrolled (PECOS I20070824000093); accepts Medicare assignment
- Medical or professional school
- University Of Colorado School Of Medicine, Denver, 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 1707 Cole Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Julie HsuPhysician Assistant1417065244
- Arti Karna, MDInternal Medicine Physician1326158627
- Sally Quick, PAPhysician Assistant1730113077
Verify Ernest R. Castro in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 44082Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average family medicine physician in 2024
548 Medicare Part D claims for 60 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Atorvastatin Calcium48 claims
- Levothyroxine Sodium42 claims
- Lisinopril32 claims
- Amlodipine Besylate20 claims
- Allopurinol19 claims
- Tamsulosin Hcl17 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.
41 family medicine physician records list a practice address in Golden
They are 41 of the 1,371 NPPES records with a practice address in Golden, and 3,563 family medicine physician records in Colorado.
All 41 in Golden → All 3,563 in Colorado → Every provider in Golden →
Other family medicine physician records in Colorado
- Eric Abbott, D.O.Colorado Springs, CO1255522876
- John Abbott, D.O.Lamar, CO1255477790
- Rasha Abdelsalam, MDDenver, CO1891058467
- Baiju Abdulla, M.B.B.S.Colorado Springs, CO1316119076
- Nathalie Abisror, MDCastle Pines, CO1336634922
- Ashley Abrahamson, DOPueblo, CO1497324065
- Lara Abrahamson, MDFort Collins, CO1538145289
- Pamela Abrams, MDBroomfield, CO1073514188
- Hemamalini Achuthan, MDLakewood, CO1205982881
- Chris Adams, D.O.Limon, CO1144285248
Common questions
What is Ernest R. Castro, MD's NPI number?
Ernest R. Castro, MD's National Provider Identifier (NPI) is 1982785721, issued on Oct 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ernest R. Castro, MD located?
The NPPES record lists a practice address at 1707 Cole Blvd, Golden, CO, 80401. Phone: (303) 233-8295. Providers update this record themselves, so call before visiting.
How can I verify Ernest R. Castro, MD's license?
NPPES lists Colorado license number 44082, 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 Ernest R. Castro, MD prescribe under Medicare Part D?
In 2024, Ernest R. Castro, MD had 548 Medicare Part D claims for 60 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.