MRS. GRAMMY HUAYHUA (FNP) – Family Nurse Practitioner, NPI 1043853732
Family Nurse Practitioner
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
16,360 NURSE PRACTITIONER in CA
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Provider Addresses for MRS. GRAMMY HUAYHUA (FNP)
19503, Bluffwood Street, Otterbein, Rowland Heights, Los Angeles County, California, 91748, United States
ROWLAND HEIGHTS, CA 917482413
Phone: (951) 295-1802
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $234.
Total Amount is formed as General ($234) + Research ($0) + Ownership ($0) = $234.
Last reported payment date: 2024-09-11 • Largest payer in this snapshot: Inari Medical, Inc. ($170).
Total Amount
$234
General + Research + Ownership
Payments
4
Total payment records
General Amount
$234
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Inari Medical, Inc. | $170 |
| PFIZER INC. | $25 |
| Chiesi USA, Inc. | $24 |
| Janssen Pharmaceuticals, Inc | $16 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2020-12-16
PECOS data refreshed: 2026-06-15
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20201216002939 | I | Nurse Practitioner | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99284 | Emergency department visit with moderate level of medical decision making | 58 | 58 | $0 |
| 99285 | Emergency department visit with high level of medical decision making | 24 | 24 | $0 |
| 99283 | Emergency department visit with low level of medical decision making | 11 | 11 | $0 |
Insurance plans in this area (ZIP 91748)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | CA | |
| Emergency Medicine | CA | |
| Nurse Practitioner | CA | |
| Emergency Medicine | CA | |
| General Practice, Emergency Medicine | CA | |
| Emergency Medicine | CA | |
| Emergency Medicine | CA | |
| Emergency Medicine | NY | |
| Emergency Medicine | CA | |
| Emergency Medicine, Internal Medicine | CA |
Reviews
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