Annette Siemens, FNP
Nurse Practitioner · Denver, CO
Annette Siemens, FNP is a nurse practitioner with a practice address in Denver, Colorado, and NPI 1477643872, issued on Oct 14, 2006. Check the license with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Annette Siemens
- Credential
- FNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 197 AK
Self-reported in NPPES; status is on the state search - Practice location
- 2880 W Holden PL, Denver, CO 80204
- Phone
- (303) 953-6600
- Enumerated
- Oct 14, 2006
- Entity
- Type 1 · individual
Also registered at 2880 W Holden PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica Asam, M.ED., LPCMental Health Counselor1386097095
- Matthew Batliner, MDPsychiatry Physician1598260713
- Joshua Bedient, FNPFamily Medicine Physician1043888696
- Erin Carrell, FNPRegistered Nurse1801516729
- Leah Fitzgerald, PHARMDPharmacist1649794926
- Gabriella GombasProfessional Counselor1114763646
Verify Annette Siemens in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
63% fewer Medicare Part D claims than the average nurse practitioner in 2024
425 Medicare Part D claims for 51 beneficiaries, against an average of 1,144 among the 50,277 providers of this specialty who prescribed in Part D.
Most prescribed
- Losartan Potassium31 claims
- Atorvastatin Calcium30 claims
- Lisinopril25 claims
- Omeprazole17 claims
- Trulicity15 claims
- Lantus Solostar14 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.
One hospital or facility affiliation
- Denver Indian Health And Family Services Inc.Denver, CO
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Nurse Practitioner providers in Colorado
There are 1,233 nurse practitioner records in Colorado.
Other nurse practitioner records in Colorado
- Jennifer Abbey, NPColorado Springs, CO1598316556
- Marie Abbinante, NPMontrose, CO1295118610
- Jenny Abernathy, FNPErie, CO1407059355
- Emily Abernethy, NPArvada, CO1881364859
- Kathleen Adams, DNP, FNP-CDenver, CO1235855032
- Gleandy Adlaon Gott, NPLittleton, CO1053538397
- Sandra Adolff, NPLakewood, CO1487844312
- Dora AgyemanLongmont, CO1215704317
- Ona Ahumada, NPLittleton, CO1790074763
- Adesoji Ajala, NPLittleton, CO1063190825
Common questions
What is Annette Siemens, FNP's NPI number?
Annette Siemens, FNP's National Provider Identifier (NPI) is 1477643872, issued on Oct 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Annette Siemens, FNP located?
The NPPES record lists a practice address at 2880 W Holden PL, Denver, CO, 80204. Phone: (303) 953-6600. Providers update this record themselves, so call before visiting.
How can I verify Annette Siemens, FNP's license?
Search the Colorado board that licenses this profession; the NPPES record confirms identity only.
How much does Annette Siemens, FNP prescribe under Medicare Part D?
In 2024, Annette Siemens, FNP had 425 Medicare Part D claims for 51 beneficiaries; the average among nurse practitioner prescribers was 1,144. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.