Anne Giesen, DO
Geriatric Medicine (Family Medicine) Physician · Boulder, CO
Anne Giesen, DO is a geriatric medicine (family medicine) physician with a practice address in Boulder, Colorado, and NPI 1851408926, issued on Aug 24, 2006. Check the license (Colorado 40821, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Anne Giesen
- Credential
- DO
- Primary taxonomy
- Geriatric Medicine (Family Medicine) Physician 207QG0300X
- License number
- 40821 CO
Self-reported in NPPES; status is on the state search - Practice location
- 350 Ponca PL, Boulder, CO 80303
- Phone
- (303) 938-1110
- Enumerated
- Aug 24, 2006
- Record last updated
- Apr 12, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (303) 938-1145
- Medicaid ID
- 22909532 CO
- Medicare enrollment
- Enrolled (PECOS I20040227000008); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 1996
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest geriatric medicine (family medicine) physician records → All 28 in Colorado → Look up another NPI →
Also registered at 350 Ponca PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Irene Christoforou, OTR/LOccupational Therapist1639776966
- Britt Garcia, PTPhysical Medicine & Rehabilitation Physician1053805192
- Judith HunterSpeech-Language Pathologist1700372265
- Amanda Kolodji-Ayotte, M.S., L.AC.Acupuncturist1093679797
- Michele Lee, MDGeriatric Medicine (Family Medicine) Physician1922015973
- Nicole LombilloSpeech-Language Pathologist1962275628
Verify Anne Giesen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 40821Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average geriatric medicine (family medicine) physician in 2024
1,615 Medicare Part D claims for 185 beneficiaries, against an average of 5,222 among the 1,271 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 71 claims were for opioids.
Most prescribed
- Levothyroxine Sodium96 claims
- Rosuvastatin Calcium64 claims
- Amlodipine Besylate50 claims
- Atorvastatin Calcium44 claims
- Escitalopram Oxalate42 claims
- Celecoxib41 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.
The MIPS final score for 2023 (Medicare payment program): 87.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Wisdom Health PCBoulder, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anne Giesen among 28 geriatric medicine (family medicine) physician records in Colorado
Anne Giesen, DO is one of 28 geriatric medicine (family medicine) physician records with a practice address in Colorado. 75% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 50% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1996 · median 2007 among the 14 with a school on file
- Record last updated2012 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QG0300X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Family Medicine) Physician providers in Colorado
There are 28 geriatric medicine (family medicine) physician records in Colorado.
All 28 in Colorado → Every provider in Boulder → Geriatric Medicine (Family Medicine) Physician nationwide →
The 8 geriatric medicine (family medicine) physician records with the nearest ZIP codes
- Michele Lee, MDBoulder, CO 803031922015973
- Shannon Tapia, MDDenver, CO 802381851610406
- Jane Kim, M.D.Lakewood, CO 802281912970682
- Barbara Morris, MDLakewood, CO 802281255468203
- Sushanthi Katta, MDGolden, CO 804031588697726
- Seema Siraj, MDGolden, CO 804031952595928
- Joanna Trojanowski, MDGolden, CO 804031891957056
- Madison LucasMorrison, CO 804651033354386
Common questions
What is Anne Giesen, DO's NPI number?
Anne Giesen, DO's National Provider Identifier (NPI) is 1851408926, issued on Aug 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Anne Giesen, DO located?
The NPPES record lists a practice address at 350 Ponca PL, Boulder, CO, 80303. Phone: (303) 938-1110. Providers update this record themselves, so call before visiting.
How can I verify Anne Giesen, DO's license?
NPPES lists Colorado license number 40821, 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 Anne Giesen, DO prescribe under Medicare Part D?
In 2024, Anne Giesen, DO had 1,615 Medicare Part D claims for 185 beneficiaries; the average among geriatric medicine (family medicine) physician prescribers was 5,222. Part D covers Medicare prescriptions only.
What is Anne Giesen, DO's MIPS final score?
The 2023 MIPS final score is 87.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.