2026 NPPES data Medical Physician Assistant NPI 1255434197 PA-C
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ALISON BROWN, PA-C

Medical Physician Assistant in VALENCIA, 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
3K
Medicare Part D claims · 631 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
81%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$48.81
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ALISON BROWN, PA-C filed 2,659 Medicare Part D claims in 2023 as a Medical Physician Assistant in VALENCIA, California, prescribing 81% generic.

3K
Part D claims, 2023
81%
generic prescribing
$48.81
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.

ALISON BROWN, PA-C's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

2,659 Top 13% higher than 87% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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 ALISON BROWN, PA-C?

Quality data not reported

NPI registry status

Active

Issued 09/06/2006

NPI 1255434197

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

2,659 147% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in California

How Medical Physician Assistant compares to other specialties among California providers

California providers

Medical Physician Assistant share within California

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Medical 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).

ALISON BROWN, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 27875 SMYTH DR, VALENCIA, CA, 91355, with a listed phone of (661) 257-9999. NPI 1255434197 was issued on 09/06/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BROWN 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 2,659 prescription claims written by this provider, covering 631 Medicare beneficiaries and totaling roughly $533K in drug spend, split 19% brand-name and 81% 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.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 enrolled providers across 55 states and an average of 1,077 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

27875 SMYTH DR
VALENCIA, CA 91355

Provider Details

NPI 1255434197
Specialty Medical Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 09/06/2006

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 ALISON BROWN, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$49

Largest payer

Blue Earth Diagnostics Limited

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 ALISON BROWN, PA-C. To verify ALISON BROWN, PA-C'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

ALISON BROWN, PA-C — brand share 19.0%
Specialty average (est.)

19% brand-name claims vs 81% generic, on 2,659 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.

2,659
Total Claims
$533K
Total Drug Cost
631
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,037
Total Day Supply
143,670
Brand vs Generic
19% brand / 81% generic
Brand Drug Cost
$399K
Generic Drug Cost
$132K
Antibiotic Claims
371

Patient Demographics

Average Patient Age
76.9 years
Avg HCC Risk Score
2.13
Gender Split
34% female / 66% male
Age Distribution
<65: 56, 65-74: 183, 75-84: 263, 85+: 129

Top Prescribed Drugs (Medicare Part D)

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

What ALISON BROWN, PA-C prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Tamsulosin Hcl
695
Myrbetriq
Mirabegron
361
Finasteride
293
Solifenacin Succinate
143
Cephalexin
104
Estradiol
99
Silodosin
86
Nitrofurantoin
Nitrofurantoin Macrocrystal
48
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
47
Dutasteride
45

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

Medical Physician Assistant Overview

How ALISON BROWN, PA-C fits within the Medical Physician Assistant landscape nationally.

40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

ALISON BROWN, PA-C's 2,659 claims are above the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in California

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

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

Frequently Asked Questions

What is ALISON BROWN, PA-C's specialty?
ALISON BROWN, PA-C specializes in Medical Physician Assistant and practices in VALENCIA, California. Credentials: PA-C.
How much does ALISON BROWN, PA-C prescribe under Medicare Part D?
In 2023, ALISON BROWN, PA-C wrote 2,659 Medicare Part D claims totaling $533K in drug costs for 631 beneficiaries.
Where is ALISON BROWN, PA-C located?
ALISON BROWN, PA-C is located at 27875 SMYTH DR, VALENCIA, CA, 91355. Phone: (661) 257-9999.
What is ALISON BROWN, PA-C's NPI number?
ALISON BROWN, PA-C's National Provider Identifier (NPI) is 1255434197, issued on 09/06/2006.
Does ALISON BROWN, PA-C prescribe more brand-name or generic drugs?
ALISON BROWN, PA-C's prescribing is 19% brand-name and 81% generic drugs by claim count, with $399K in brand drug costs.
How many Medical Physician Assistant providers are there in the US?
There are 40,527 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does ALISON BROWN, PA-C prescribe most often?
Based on 2023 Medicare Part D data, ALISON BROWN, PA-C's most frequently prescribed drugs include Tamsulosin Hcl, Myrbetriq, Finasteride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ALISON BROWN, PA-C accept Medicare?
ALISON BROWN, PA-C appears in CMS Medicare data with 2,659 Part D claims and 631 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALISON BROWN, PA-C's credentials?
ALISON BROWN, PA-C's NPI is 1255434197 with credentials PA-C. 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