NPPES file of Aug 9, 2026

Emma Mae Masi, NP

Family Nurse Practitioner · Denver, CO

Emma Mae Masi, NP is a family nurse practitioner with a practice address in Denver, Colorado, and NPI 1992586952, issued on Oct 6, 2023. Check the license (Colorado APN.0999181-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
1992586952
Name
Emma Mae Masi
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
APN.0999181-NP CO
Self-reported in NPPES; status is on the state search
Practice location
1445 S Pearl St, Denver, CO 80210
Phone
(802) 595-3687
Enumerated
Oct 6, 2023
Record last updated
Oct 6, 2023
Medicare enrollment
Enrolled (PECOS I20240911003058); 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 1445 S Pearl St

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

  1. Grace Cooper, LSWSocial Worker1205719580
  2. Jordan Costlow, FNPNurse Practitioner1083137202

Verify Emma Mae Masi 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.0999181-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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28% fewer Medicare Part D claims than the average family nurse practitioner in 2024

946 Medicare Part D claims for 123 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 80 claims were for opioids.

  1. Emma Masi946
  2. Specialty average1,305

Most prescribed

  1. Losartan Potassium38 claims
  2. Lisinopril30 claims
  3. Sertraline Hcl29 claims
  4. Quetiapine Fumarate28 claims
  5. Duloxetine Hcl22 claims
  6. Trazodone Hcl22 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. Physician Housecalls LLCLakewood, CO

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

Emma Mae Masi among 3,492 family nurse practitioner records in Colorado

Emma Mae Masi, NP 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
  • Graduated2024 · median 2019 among the 1,950 with a school on file
  • Record last updated2023 · 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. Ann Ambrose, NPDenver, CO 802101982610911
  2. Elizabeth Corcoran, FNPDenver, CO 802101548616758
  3. Jolin Honas, ANPDenver, CO 802101164739900
  4. Emily Kaufman, N.PDenver, CO 802101336561919
  5. David Kleberger, N.P.Denver, CO 802101386636439
  6. Stephanie Langford, FNP-BCDenver, CO 802101417346800
  7. Joy Miccio, RNDenver, CO 802101952938714
  8. Sheree Montoya, FNP-BCDenver, CO 802101871079384

Common questions

What is Emma Mae Masi, NP's NPI number?

Emma Mae Masi, NP's National Provider Identifier (NPI) is 1992586952, issued on Oct 6, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Emma Mae Masi, NP located?

The NPPES record lists a practice address at 1445 S Pearl St, Denver, CO, 80210. Phone: (802) 595-3687. Providers update this record themselves, so call before visiting.

How can I verify Emma Mae Masi, NP's license?

NPPES lists Colorado license number APN.0999181-NP, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.

How much does Emma Mae Masi, NP prescribe under Medicare Part D?

In 2024, Emma Mae Masi, NP had 946 Medicare Part D claims for 123 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.