NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1336717487
Verify on CMS → Sonya Ambriz
Nurse Practitioner in Huntington Park, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 87,227 in Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
1K
Medicare Part D claims · 148 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
64%
generic claims · 31% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$261.37
13 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Sonya Ambriz filed 1,112 Medicare Part D claims in 2023 as a Nurse Practitioner in Huntington Park, California, prescribing 64% generic.
- 1K
- Part D claims, 2023
- 64%
- generic prescribing
- $261.37
- industry payments (Sunshine Act)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Sonya Ambriz's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,112 Top 23% higher than 77% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Sonya Ambriz?
Quality data not reportedPrimary specialty
Nurse Practitioner
Medicare Part D claims
1,112 3% vs specialty avg
Specialty distribution in California
How Nurse Practitioner compares to other specialties among California providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Nurse Practitioner. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Sonya Ambriz appears in the CMS NPPES registry as a Nurse Practitioner provider at 3203 FLORENCE AVE, Huntington Park, CA, 90255, with a listed phone of (323) 835-6310. NPI 1336717487 was issued on 06/15/2021.
Medicare Part D records for calendar year 2023 show 1,112 prescription claims written by this provider, covering 148 Medicare beneficiaries and totaling roughly $420K in drug spend, split 31% brand-name and 64% generic by claim count.
Nurse Practitioner is a high-volume specialty nationwide, with 87,227 enrolled providers across 56 states and an average of 1,084 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1336717487 |
|---|---|
| Specialty | Nurse Practitioner |
| Gender | Female |
| NPI Issued | 06/15/2021 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Sonya Ambriz. Source: openpaymentsdata.cms.gov.
Total received
$261
Largest payer
Lilly USA, LLC
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - California MBC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Sonya Ambriz. To verify Sonya Ambriz's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Sonya Ambriz - brand share 31.0%
Nurse Practitioner average
31% brand-name claims vs 64% generic, on 1,112 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,112
Total Claims
$420K
Total Drug Cost
148
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,236
- Total Day Supply
- 65,590
- Brand vs Generic
- 31% brand / 64% generic
- Brand Drug Cost
- $381K
- Generic Drug Cost
- $35K
- Antibiotic Claims
- 21
Patient Demographics
- Average Patient Age
- 66.6 years
- Avg HCC Risk Score
- 3.15
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 44, 65-74: 77, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Sonya Ambriz prescribes most
Top Medicare Part D drugs by claim count, 2023
- Metformin Hcl
Metformin Hcl
79 claims
- Farxiga
Farxiga
59 claims
- Levothyroxine Sodium
Levothyroxine Sodium
59 claims
- Trulicity
Trulicity
50 claims
- Losartan Potassium
Losartan Potassium
42 claims
- Glipizide
Glipizide
41 claims
- Amlodipine Besylate
Amlodipine Besylate
38 claims
- Atorvastatin Calcium 31
Atorvastatin Calcium
31 claims
| Drug | Claims |
|---|---|
| Metformin Hcl | 79 |
| Farxiga Dapagliflozin Propanediol | 59 |
| Levothyroxine Sodium | 59 |
| Trulicity Dulaglutide | 50 |
| Losartan Potassium | 42 |
| Glipizide | 41 |
| Amlodipine Besylate | 38 |
| Atorvastatin Calcium | 31 |
| Gabapentin | 23 |
| Calcium Acetate | 22 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Sonya Ambriz fits within the Nurse Practitioner landscape nationally.
87,227
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider
Sonya Ambriz's 1,112 claims are above the specialty average of 1,084.
Nearby Nurse Practitioner Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Ambriz.
Dr. Barbara Aaronson
RN/NURSE PRACTITONER
Los Angeles, CA
Dr. Albert Aba
AGNP
San Francisco, CA
Venice Ababat
Colton, CA
Dr. Martha Ababneh
CNA
El Monte, CA
Dr. Chelsea Abad
CRNP, AGPCNP - BC
Duarte, CA
Compare Nurse Practitioner nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Sonya Ambriz's specialty? ▼
Sonya Ambriz specializes in Nurse Practitioner and practices in Huntington Park, California.
How much does Sonya Ambriz prescribe under Medicare Part D? ▼
In 2023, Sonya Ambriz wrote 1,112 Medicare Part D claims totaling $420K in drug costs for 148 beneficiaries.
Where is Sonya Ambriz located? ▼
Sonya Ambriz is located at 3203 FLORENCE AVE, Huntington Park, CA, 90255. Phone: (323) 835-6310.
What is Sonya Ambriz's NPI number? ▼
Sonya Ambriz's National Provider Identifier (NPI) is 1336717487, issued on 06/15/2021.
Does Sonya Ambriz prescribe more brand-name or generic drugs? ▼
Sonya Ambriz's prescribing is 31% brand-name and 64% generic drugs by claim count, with $381K in brand drug costs.
How many Nurse Practitioner providers are there in the US? ▼
There are 87,227 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does Sonya Ambriz prescribe most often? ▼
Based on 2023 Medicare Part D data, Sonya Ambriz's most frequently prescribed drugs include Metformin Hcl, Farxiga, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sonya Ambriz accept Medicare? ▼
Sonya Ambriz appears in CMS Medicare data with 1,112 Part D claims and 148 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sonya Ambriz's credentials? ▼
Sonya Ambriz's NPI is 1336717487. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.