NPPES file of Aug 9, 2026

Grammy Huayhua, FNP

Family Nurse Practitioner · Rowland Heights, CA

Grammy Huayhua, FNP is a family nurse practitioner with a practice address in Rowland Heights, California, and NPI 1043853732, issued on Oct 24, 2019. Check the license (California NP95011255, as entered in NPPES) with the California 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
1043853732
Name
Grammy Huayhua
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
NP95011255 CA
Self-reported in NPPES; status is on the state search
Practice location
19503 Bluffwood St, Rowland Heights, CA 91748
Phone
(951) 295-1802
Enumerated
Oct 24, 2019
Record last updated
May 5, 2022
Medicaid ID
NP95011255 CA
Medicare enrollment
Enrolled (PECOS I20201216002939); 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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8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →

Also registered at 19503 Bluffwood St

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

  1. Wendy HuayhuaPsychiatric/Mental Health Nurse Practitioner1164381869

Verify Grammy Huayhua in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license NP95011255    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 California license search

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67% fewer Medicare Part D claims than the average family nurse practitioner in 2024

437 Medicare Part D claims for 303 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Grammy Huayhua437
  2. Specialty average1,305

Most prescribed

  1. Azelastine Hcl65 claims
  2. Paxlovid50 claims
  3. Ibuprofen27 claims
  4. Doxycycline Monohydrate22 claims
  5. Albuterol Sulfate Hfa21 claims
  6. Cefadroxil18 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.

Industry payments in 2024: $169.70

1 payment: food and beverage; the largest payer was Inari Medical, Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Grammy Huayhua$169.70
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Gem Medical Group CorporationMonterey Park, CA
  2. Southern California Permanente Medical GroupAnaheim, CA

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

Grammy Huayhua among 16,966 family nurse practitioner records in California

Grammy Huayhua, FNP is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 50% of them.

  • NPI issued2019 · 50% of these records are older, 44% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2018 · median 2019 among the 6,793 with a school on file
  • Record last updated2022 · 42% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

10 family nurse practitioner records list a practice address in Rowland Heights

They are 10 of the 816 NPPES records with a practice address in Rowland Heights, and 16,966 family nurse practitioner records in California.

All 16,966 in California → Every provider in Rowland Heights → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Mareynal BautistaRowland Heights, CA 917481003679291
  2. Huiling ChangCity Of Industry, CA 917481356912687
  3. Xiaohua HeCity Of Industry, CA 917481982460622
  4. Ye Kyung Jeong, NPRowland Heights, CA 917481376237446
  5. Jihee Kim, FNPRowland Heights, CA 917481194395053
  6. Qing Li, MSNRowland Heights, CA 917481376823484
  7. Jiamin Lin, NPRowland Heights, CA 917481396540407
  8. Robert Terrill Ong, N.PRowland Heights, CA 917481407235237

Common questions

What is Grammy Huayhua, FNP's NPI number?

Grammy Huayhua, FNP's National Provider Identifier (NPI) is 1043853732, issued on Oct 24, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Grammy Huayhua, FNP located?

The NPPES record lists a practice address at 19503 Bluffwood St, Rowland Heights, CA, 91748. Phone: (951) 295-1802. Providers update this record themselves, so call before visiting.

How can I verify Grammy Huayhua, FNP's license?

NPPES lists California license number NP95011255, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Grammy Huayhua, FNP prescribe under Medicare Part D?

In 2024, Grammy Huayhua, FNP had 437 Medicare Part D claims for 303 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.