2026 NPPES data Physician Assistant NPI 1083810766 PA
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NANCY ADINOLFI, PA

Physician Assistant in MERCED, 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
2K
Medicare Part D claims · 112 beneficiaries · Physician Assistant avg: 790
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$518.38
8 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: NANCY ADINOLFI, PA is a Physician Assistant ([object Object]) practicing in MERCED, California with a Medicare Part D prescribing footprint of 2K claims across 112 beneficiaries — 10% brand-name prescribing . Industry payments of $518.38 across 8 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: NANCY ADINOLFI, PA filed 1,889 Medicare Part D claims in 2023 across MERCED, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

NANCY ADINOLFI, PA at a glance

Quality data not reported

NPI registry status

Active

Issued 06/21/2007

NPI 1083810766

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

1,889 139% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in California

How Physician Assistant compares to other specialties among California providers

California providers

Physician Assistant share within California

1. Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physician Assistant share within California

Specialty board-certification context

Estimated specialty board-certified rate — Physician Assistant (ABMS / AOA reference)

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

Est. board-certified rate (Physician Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Physician Assistant) — 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).

NANCY ADINOLFI, PA is a Physician Assistant provider practicing in MERCED, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA. NPI: 1083810766. 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.

NANCY ADINOLFI, PA appears in the CMS NPPES registry as a Physician Assistant provider holding PA credentials at 1190 W OLIVE AVE, MERCED, CA, 95348, with a listed phone of (209) 722-0831. NPI 1083810766 was issued on 06/21/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ADINOLFI 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 1,889 prescription claims written by this provider, covering 112 Medicare beneficiaries and totaling roughly $241K in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 3.0%. 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.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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

1190 W OLIVE AVE
MERCED, CA 95348

Provider Details

NPI 1083810766
Specialty Physician Assistant
Credentials PA
Gender Female
NPI Issued 06/21/2007

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 NANCY ADINOLFI, PA. Source: openpaymentsdata.cms.gov.

Total received

$518

Largest payer

Axsome Therapeutics, Inc.

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 NANCY ADINOLFI, PA. To verify NANCY ADINOLFI, PA'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 · Typical

NANCY ADINOLFI, PA — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 1,889 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.

1,889
Total Claims
$241K
Total Drug Cost
112
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,605
Total Day Supply
133,258
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$186K
Generic Drug Cost
$54K
Opioid Claims
56 (3.0% rate)
Antibiotic Claims
81

Patient Demographics

Average Patient Age
73.4 years
Avg HCC Risk Score
0.96
Gender Split
58% female / 42% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Atorvastatin Calcium
137
Amlodipine Besylate
91
Meloxicam
88
Metformin Hcl
87
Losartan Potassium
86
Metoprolol Succinate
70
Omeprazole
58
Levothyroxine Sodium
56
Losartan-Hydrochlorothiazide
Losartan/Hydrochlorothiazide
42
Lisinopril
36

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Physician Assistant Overview

How NANCY ADINOLFI, PA fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

NANCY ADINOLFI, PA's 1,889 claims are above the specialty average of 790.

Nearby Physician Assistant Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as ADINOLFI.

Compare Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is NANCY ADINOLFI, PA's specialty?
NANCY ADINOLFI, PA specializes in Physician Assistant and practices in MERCED, California. Credentials: PA.
How much does NANCY ADINOLFI, PA prescribe under Medicare Part D?
In 2023, NANCY ADINOLFI, PA wrote 1,889 Medicare Part D claims totaling $241K in drug costs for 112 beneficiaries.
Where is NANCY ADINOLFI, PA located?
NANCY ADINOLFI, PA is located at 1190 W OLIVE AVE, MERCED, CA, 95348. Phone: (209) 722-0831.
What is NANCY ADINOLFI, PA's NPI number?
NANCY ADINOLFI, PA's National Provider Identifier (NPI) is 1083810766, issued on 06/21/2007.
Does NANCY ADINOLFI, PA prescribe more brand-name or generic drugs?
NANCY ADINOLFI, PA's prescribing is 10% brand-name and 90% generic drugs by claim count, with $186K in brand drug costs.
Does NANCY ADINOLFI, PA prescribe opioids?
Yes, NANCY ADINOLFI, PA had 56 opioid claims in 2023 with an opioid prescribing rate of 3.0%.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does NANCY ADINOLFI, PA prescribe most often?
Based on 2023 Medicare Part D data, NANCY ADINOLFI, PA's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Meloxicam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NANCY ADINOLFI, PA accept Medicare?
NANCY ADINOLFI, PA appears in CMS Medicare data with 1,889 Part D claims and 112 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NANCY ADINOLFI, PA's credentials?
NANCY ADINOLFI, PA's NPI is 1083810766 with credentials PA. 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