NPPES file of Aug 9, 2026

Amparo Grigera, FNP-BC

Family Nurse Practitioner · Tucson, AZ

Amparo Grigera, FNP-BC is a family nurse practitioner with a practice address in Tucson, Arizona, and NPI 1376271080, issued on Aug 10, 2022. Check the license (Arizona RNP279113, as entered in NPPES) with the Arizona 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
1376271080
Name
Amparo Grigera
Credential
FNP-BC
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
RNP279113 AZ
Self-reported in NPPES; status is on the state search
Practice location
839 W Congress St, Tucson, AZ 85745
Phone
(520) 670-3909
Enumerated
Aug 10, 2022
Record last updated
Jan 28, 2025
Fax
(520) 309-2560
Medicare enrollment
Enrolled (PECOS I20220923000784); 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 839 W Congress St

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

  1. Denise Ahearn, MDPediatrics Physician1194719047
  2. Melinda Arias, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1720688369
  3. Andrew Arthur, MDPediatrics Physician1962484048
  4. Vienna Aslanian, LCSWClinical Social Worker1437743523
  5. James Austin, CNMAdvanced Practice Midwife1205398682
  6. Michelle Baas, CNMAdvanced Practice Midwife1164155487

Verify Amparo Grigera in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license RNP279113
    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 Arizona 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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95% more Medicare Part D claims than the average family nurse practitioner in 2024

2,548 Medicare Part D claims for 286 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 17 claims were for opioids.

  1. Amparo Grigera2,548
  2. Specialty average1,305

Most prescribed

  1. Levothyroxine Sodium163 claims
  2. Atorvastatin Calcium150 claims
  3. Losartan Potassium136 claims
  4. Lisinopril112 claims
  5. Amlodipine Besylate102 claims
  6. Metformin Hcl84 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. EL Rio Santa Cruz Neighborhood Health Center, Inc.Tucson, AZ

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

Amparo Grigera among 5,933 family nurse practitioner records in Arizona

Amparo Grigera, FNP-BC is one of 5,933 family nurse practitioner records with a practice address in Arizona. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 73% of them.

  • NPI issued2022 · 73% of these records are older, 21% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2022 · median 2019 among the 3,510 with a school on file
  • Record last updated2025 · 38% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

907 family nurse practitioner records list a practice address in Tucson

They are 907 of the 18,788 NPPES records with a practice address in Tucson, and 5,933 family nurse practitioner records in Arizona.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Alicia Aguilar, FNP-CTucson, AZ 857451982888962
  2. Deane Apperson, F.N.P.Tucson, AZ 857451902885932
  3. Kane Gronback, APRNTucson, AZ 857451356789226
  4. Dulce Hammett, FNPTucson, AZ 857451235475732
  5. Rose Harris, FNPTucson, AZ 857451497175293
  6. Tab Hoyt, FNPTucson, AZ 857451174666564
  7. Sherrie Kelly, FNPTucson, AZ 857451134315070
  8. Mary Leitner, FNPTucson, AZ 857451730161829

Common questions

What is Amparo Grigera, FNP-BC's NPI number?

Amparo Grigera, FNP-BC's National Provider Identifier (NPI) is 1376271080, issued on Aug 10, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Amparo Grigera, FNP-BC located?

The NPPES record lists a practice address at 839 W Congress St, Tucson, AZ, 85745. Phone: (520) 670-3909. Providers update this record themselves, so call before visiting.

How can I verify Amparo Grigera, FNP-BC's license?

NPPES lists Arizona license number RNP279113, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Amparo Grigera, FNP-BC prescribe under Medicare Part D?

In 2024, Amparo Grigera, FNP-BC had 2,548 Medicare Part D claims for 286 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.