NPPES file of Aug 9, 2026

Alyssa Dianna Sieber, FNP

Family Nurse Practitioner · Denver, CO

Alyssa Dianna Sieber, FNP is a family nurse practitioner with a practice address in Denver, Colorado, and NPI 1912681370, issued on Jun 14, 2023. Check the license (Colorado APN.0998352-NP, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1912681370
Name
Alyssa Dianna Sieber
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
APN.0998352-NP CO
Self-reported in NPPES; status is on the state search
Practice location
680 N Clarkson St, Denver, CO 80218
Phone
(720) 500-5488
Enumerated
Jun 14, 2023
Record last updated
Dec 11, 2024
Medicare enrollment
Enrolled (PECOS I20230918001804); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 680 N Clarkson St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Emily Carman, FNP-BCFamily Nurse Practitioner1548649973
  2. Jeralyn Fokken, NPAdult Health Nurse Practitioner1275557035
  3. Torrie Schram, FNP-CFamily Nurse Practitioner1609562461

Verify Alyssa Dianna Sieber in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Colorado board licenses this profession
    Search for license APN.0998352-NP
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Colorado license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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68% fewer Medicare Part D claims than the average family nurse practitioner in 2024

412 Medicare Part D claims for 23 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 24 claims were for opioids.

  1. Alyssa Sieber412
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium23 claims
  2. Gabapentin20 claims
  3. Duloxetine Hcl18 claims
  4. Lorazepam18 claims
  5. Omeprazole15 claims
  6. Amlodipine Besylate13 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.

Bills Medicare through one group practice

  1. Goodness Health, LLCDenver, CO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Alyssa Dianna Sieber among 3,492 family nurse practitioner records in Colorado

Alyssa Dianna Sieber, FNP is one of 3,492 family nurse practitioner records with a practice address in Colorado. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 78% of them.

  • NPI issued2023 · 78% of these records are older, 15% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2022 · median 2019 among the 1,950 with a school on file
  • Record last updated2024 · 37% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

484 family nurse practitioner records list a practice address in Denver

They are 484 of the 25,068 NPPES records with a practice address in Denver, and 3,492 family nurse practitioner records in Colorado.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Tammi Backer, FNPDenver, CO 802181932419892
  2. Jennifer Brown, FNPDenver, CO 802181497874051
  3. Emily Carman, FNP-BCDenver, CO 802181548649973
  4. Diane Chase, NPDenver, CO 802181114227162
  5. Sarah Collopy, FNPDenver, CO 802181467961508
  6. Cathy Duncan, FNPDenver, CO 802181437234184
  7. Kellie Faber, FNP-CDenver, CO 802181811260078
  8. Stephanie KaskavitchDenver, CO 802181154867216

Common questions

What is Alyssa Dianna Sieber, FNP's NPI number?

Alyssa Dianna Sieber, FNP's National Provider Identifier (NPI) is 1912681370, issued on Jun 14, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Alyssa Dianna Sieber, FNP located?

The NPPES record lists a practice address at 680 N Clarkson St, Denver, CO, 80218. Phone: (720) 500-5488. Providers update this record themselves, so call before visiting.

How can I verify Alyssa Dianna Sieber, FNP's license?

NPPES lists Colorado license number APN.0998352-NP, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.

How much does Alyssa Dianna Sieber, FNP prescribe under Medicare Part D?

In 2024, Alyssa Dianna Sieber, FNP had 412 Medicare Part D claims for 23 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.