NPPES file of Aug 9, 2026

Erin Gwen Harper-Sanchez, CNM, NP, RN

Family Nurse Practitioner · Boulder, CO

Erin Gwen Harper-Sanchez, CNM, NP, RN is a family nurse practitioner with a practice address in Boulder, Colorado, and NPI 1629293436, issued on Apr 16, 2007. Check the license (Colorado APN.0992730-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
1629293436
Name
Erin Gwen Harper-Sanchez
Credential
CNM, NP, RN
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
APN.0992730-NP CO
4334 CO
Self-reported in NPPES; status is on the state search
Practice location
4745 Arapahoe Ave Ste 200, Boulder, CO 80303
Phone
(303) 938-4710
Enumerated
Apr 16, 2007
Record last updated
Mar 10, 2025
Fax
(303) 541-0807
Medicare enrollment
Enrolled (PECOS I20170420001103); accepts Medicare assignment
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 4745 Arapahoe Ave Ste 200

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

  1. Lauren Brave, MDPediatrics Physician1285603696
  2. Andrea Burgess, MDObstetrics & Gynecology Physician1972638294
  3. James Gottlieb, M.D.Pediatrics Physician1811213838
  4. Kathryn Hoch, M.D.Obstetrics & Gynecology Physician1639268642
  5. Katherine Kennedy, M.D.Pediatrics Physician1376743856
  6. Susan Larson, M.D.Pediatrics Physician1336125632

Verify Erin Gwen Harper-Sanchez 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.0992730-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

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83% fewer Medicare Part D claims than the average family nurse practitioner in 2024

227 Medicare Part D claims for 102 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Erin Harper-Sanchez227
  2. Specialty average1,305

Most prescribed

  1. Estradiol37 claims
  2. Albuterol Sulfate Hfa18 claims
  3. Combipatch11 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 2 group practices

  1. Boulder Medical Center, PCBoulder, CO
  2. Catholic Health Initiatives ColoradoWestminster, CO

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

82 family nurse practitioner records list a practice address in Boulder

They are 82 of the 5,635 NPPES records with a practice address in Boulder, and 3,492 family nurse practitioner records in Colorado.

Other family nurse practitioner records in Colorado

  1. Abbey Aaroe, FNPCanon City, CO1922685189
  2. Simone Abachiche, NP-CColorado Springs, CO1801566518
  3. Christina AbbottLongmont, CO1962039172
  4. Patricia Abbott, ARNPAurora, CO1962452227
  5. Isadora Abel, FNPDenver, CO1275250391
  6. Sally Abell, DNPColorado Springs, CO1699356733
  7. Sarah AbercrombieGrand Junction, CO1093490567
  8. Jenny Abernathy, FNPErie, CO1407059355
  9. Gabriela Abeyta, APRN-CNP, FNP-CColorado Springs, CO1891506515
  10. Taylor Abner, APRN, FNPGolden, CO1407582240

Common questions

What is Erin Gwen Harper-Sanchez, CNM, NP, RN's NPI number?

Erin Gwen Harper-Sanchez, CNM, NP, RN's National Provider Identifier (NPI) is 1629293436, issued on Apr 16, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Erin Gwen Harper-Sanchez, CNM, NP, RN located?

The NPPES record lists a practice address at 4745 Arapahoe Ave Ste 200, Boulder, CO, 80303. Phone: (303) 938-4710. Providers update this record themselves, so call before visiting.

How can I verify Erin Gwen Harper-Sanchez, CNM, NP, RN's license?

NPPES lists Colorado license number APN.0992730-NP, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.

How much does Erin Gwen Harper-Sanchez, CNM, NP, RN prescribe under Medicare Part D?

In 2024, Erin Gwen Harper-Sanchez, CNM, NP, RN had 227 Medicare Part D claims for 102 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.