Anne I. Siple, MD
Family Medicine Physician · Fort Collins, CO
Anne I. Siple, MD is a family medicine physician with a practice address in Fort Collins, Colorado, and NPI 1336155969, issued on Aug 1, 2006. Check the license (Colorado 47021, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Anne I. Siple
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 47021 CO
Self-reported in NPPES; status is on the state search - Practice location
- 2025 Bighorn RD, Fort Collins, CO 80525
- Phone
- (970) 229-9800
- Enumerated
- Aug 1, 2006
- Record last updated
- Aug 1, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (970) 229-1421
- Medicaid ID
- 88502066 CO
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 2025 Bighorn RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Madelyne Bean, PHAPharmacist1326552571
- Michael Beck-Gifford, NPFamily Nurse Practitioner1174596282
- Edmund Blackler, MDFamily Medicine Physician1508027632
- Erika Crutcher, DOFamily Medicine Physician1578830402
- Fariborz Davoodi, MDFamily Medicine Physician1811924343
- Sandra Henderson, M.D.Family Medicine Physician1053360834
Verify Anne I. Siple in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 47021Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% more Medicare Part D claims than the average family medicine physician in 2024
4,931 Medicare Part D claims for 456 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 112 claims were for opioids.
Most prescribed
- Levothyroxine Sodium424 claims
- Rosuvastatin Calcium324 claims
- Atorvastatin Calcium266 claims
- Lisinopril185 claims
- Amlodipine Besylate160 claims
- Losartan Potassium107 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.
Industry payments in 2024: $16.54
1 payment: food and beverage; the largest payer was GlaxoSmithKline, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Anne I. Siple among 3,563 family medicine physician records in Colorado
Anne I. Siple, MD 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 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).
158 family medicine physician records list a practice address in Fort Collins
They are 158 of the 6,928 NPPES records with a practice address in Fort Collins, and 3,563 family medicine physician records in Colorado.
All 3,563 in Colorado → Every provider in Fort Collins → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Lara Abrahamson, MDFort Collins, CO 805251538145289
- Kurt Dallow, MDFort Collins, CO 805251376528851
- April Gray, M.D.Fort Collins, CO 805251023052628
- Sandra Henderson, M.D.Fort Collins, CO 805251053360834
- Susan Klingner, M.D.Fort Collins, CO 805251912956194
- Keith McLaughlin, M.D.Fort Collins, CO 805251932187036
- Edward Miron, M.D.Fort Collins, CO 805251245200849
- Juan Rodriguez, D.O.Fort Collins, CO 805251811987829
Common questions
What is Anne I. Siple, MD's NPI number?
Anne I. Siple, MD's National Provider Identifier (NPI) is 1336155969, issued on Aug 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Anne I. Siple, MD located?
The NPPES record lists a practice address at 2025 Bighorn RD, Fort Collins, CO, 80525. Phone: (970) 229-9800. Providers update this record themselves, so call before visiting.
How can I verify Anne I. Siple, MD's license?
NPPES lists Colorado license number 47021, 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 I. Siple, MD prescribe under Medicare Part D?
In 2024, Anne I. Siple, MD had 4,931 Medicare Part D claims for 456 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.