Christa Elizabeth Ambrose, DO
Family Medicine Physician · Boulder, CO
Christa Elizabeth Ambrose, DO is a family medicine physician with a practice address in Boulder, Colorado, and NPI 1902912116, issued on Aug 21, 2006. Check the license (Colorado DR.0044807, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Christa Elizabeth Ambrose
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- DR.0044807 CO
Self-reported in NPPES; status is on the state search - Practice location
- 2525 13TH St, Boulder, CO 80304
- Phone
- (303) 449-6050
- Enumerated
- Aug 21, 2006
- Record last updated
- May 17, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (720) 565-4132
- Medicaid ID
- 81625863 CO
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 2525 13TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christopher Ahumada, PAPhysician Assistant1093429029
- Amy Alper, PAPhysician Assistant1104814540
- Alison Alter, FNPFamily Nurse Practitioner1528534211
- Erin Atkinson, ARNPFamily Nurse Practitioner1730170689
- Emily Barnak, PA-CPhysician Assistant1033441431
- Jennifer Berngard, MDFamily Medicine Physician1275897241
Verify Christa Elizabeth Ambrose in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0044807Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average family medicine physician in 2024
653 Medicare Part D claims for 66 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. 21 claims were for opioids.
Most prescribed
- Atorvastatin Calcium74 claims
- Gabapentin61 claims
- Levothyroxine Sodium41 claims
- Metformin Hcl26 claims
- Ventolin Hfa25 claims
- Fluticasone-Salmeterol21 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.
Christa Elizabeth Ambrose among 3,563 family medicine physician records in Colorado
Christa Elizabeth Ambrose, 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 fileNo · 58% of these records are
- 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 207Q00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
91 family medicine physician records list a practice address in Boulder
They are 91 of the 5,635 NPPES records with a practice address in Boulder, and 3,563 family medicine physician records in Colorado.
All 3,563 in Colorado → Every provider in Boulder → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Kevin Dryden, MDBoulder, CO 803041285731240
- Eileen Gallagher, M.D.Boulder, CO 803041891779500
- Frances Hamilton, M.D.Boulder, CO 803041407839137
- Harold Johnson, MDBoulder, CO 803041801860101
- Deborah Kern, M.D.Boulder, CO 803041306948591
- Michael Kosta, M.D.Boulder, CO 803041649254269
- Jill Siegfried, M.D.Boulder, CO 803041013991611
- Karin Susskind, M.D.Boulder, CO 803041093799694
Common questions
What is Christa Elizabeth Ambrose, DO's NPI number?
Christa Elizabeth Ambrose, DO's National Provider Identifier (NPI) is 1902912116, issued on Aug 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Christa Elizabeth Ambrose, DO located?
The NPPES record lists a practice address at 2525 13TH St, Boulder, CO, 80304. Phone: (303) 449-6050. Providers update this record themselves, so call before visiting.
How can I verify Christa Elizabeth Ambrose, DO's license?
NPPES lists Colorado license number DR.0044807, 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 Christa Elizabeth Ambrose, DO prescribe under Medicare Part D?
In 2024, Christa Elizabeth Ambrose, DO had 653 Medicare Part D claims for 66 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.