2026 NPPES data Nurse Practitioner NPI 1336717487
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SONYA AMBRIZ

Nurse Practitioner in HUNTINGTON PARK, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
1K
Medicare Part D claims · 148 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
69%
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)
What the federal data reveals: SONYA AMBRIZ is a Nurse Practitioner ([object Object]) practicing in HUNTINGTON PARK, California with a Medicare Part D prescribing footprint of 1K claims across 148 beneficiaries — 31% brand-name prescribing . Industry payments of $261.37 across 13 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: SONYA AMBRIZ filed 1,112 Medicare Part D claims in 2023 across HUNTINGTON PARK, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

SONYA AMBRIZ at a glance

Quality data not reported

NPI registry status

Active

Issued 06/15/2021

NPI 1336717487

Primary specialty

Nurse Practitioner

High-volume

87,227 US NPIs in this specialty

Medicare Part D claims

1,112 3% vs specialty avg

2023 prescription claims

Specialty avg: 1,084

Specialty distribution in California

How Nurse Practitioner compares to other specialties among California providers

California providers

Nurse Practitioner share within California

1. Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nurse Practitioner share within California

Specialty board-certification context

Estimated specialty board-certified rate — Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Nurse Practitioner) — ABMS / AOA estimate

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 is a Nurse Practitioner provider practicing in HUNTINGTON PARK, California, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1336717487. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

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. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AMBRIZ most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

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 69% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

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

3203 FLORENCE AVE
HUNTINGTON PARK, CA 90255

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%
Specialty average (est.)

31% brand-name claims vs 69% 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 / 69% 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.

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.

Compare Nurse Practitioner nationally: see state-by-state distribution →

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 69% 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

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