2026 NPPES data Medical Physician Assistant NPI 1689615361 PAC
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STACY COHEN-BARRERA, PAC

Medical Physician Assistant in LAGUNA WOODS, 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
267
Medicare Part D claims · 166 beneficiaries · Medical Physician Assistant avg: 1K
Industry payments
$237.97
7 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: STACY COHEN-BARRERA, PAC is a Medical Physician Assistant ([object Object]) practicing in LAGUNA WOODS, California with a Medicare Part D prescribing footprint of 267 claims across 166 beneficiaries . Industry payments of $237.97 across 7 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: STACY COHEN-BARRERA, PAC filed 267 Medicare Part D claims in 2023 across LAGUNA WOODS, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

STACY COHEN-BARRERA, PAC at a glance

Quality data not reported

NPI registry status

Active

Issued 06/10/2006

NPI 1689615361

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

267 75% 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).

STACY COHEN-BARRERA, PAC is a Medical Physician Assistant provider practicing in LAGUNA WOODS, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PAC. NPI: 1689615361. 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.

STACY COHEN-BARRERA, PAC appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PAC credentials at 24331 EL TORO RD STE 200, LAGUNA WOODS, CA, 92637, with a listed phone of (495) 863-3200. NPI 1689615361 was issued on 06/10/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what COHEN-BARRERA 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 267 prescription claims written by this provider, covering 166 Medicare beneficiaries and totaling roughly $4K in drug spend. 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

24331 EL TORO RD STE 200
LAGUNA WOODS, CA 92637

Provider Details

NPI 1689615361
Specialty Medical Physician Assistant
Credentials PAC
Gender Female
NPI Issued 06/10/2006

Hospital and facility affiliations

Facilities where STACY COHEN-BARRERA, PAC bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

CARBON HEALTH MEDICAL GROUP OF CALIFORNIA PC
CYPRESS, CA
PORTOLA MEDICAL SERVICES PC
ORANGE, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 STACY COHEN-BARRERA, PAC. Source: openpaymentsdata.cms.gov.

Total received

$238

Largest payer

AstraZeneca Pharmaceuticals LP

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 STACY COHEN-BARRERA, PAC. To verify STACY COHEN-BARRERA, PAC'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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

267
Total Claims
$4K
Total Drug Cost
166
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
270
Total Day Supply
3,122
Generic Drug Cost
$3K
Antibiotic Claims
146

Patient Demographics

Average Patient Age
73.9 years
Avg HCC Risk Score
1.01
Gender Split
66% female / 34% male
Age Distribution
<65: 11, 65-74: 77, 75-84: 58, 85+: 20

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Azithromycin
30
Albuterol Sulfate Hfa
Albuterol Sulfate
29
Cephalexin
26
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
21
Ciprofloxacin Hcl
16
Methylprednisolone
15
Doxycycline Monohydrate
14
Levofloxacin
13
Amoxicillin
12

* 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 STACY COHEN-BARRERA, PAC 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

STACY COHEN-BARRERA, PAC's 267 claims are below 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 COHEN-BARRERA.

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

Frequently Asked Questions

What is STACY COHEN-BARRERA, PAC's specialty?
STACY COHEN-BARRERA, PAC specializes in Medical Physician Assistant and practices in LAGUNA WOODS, California. Credentials: PAC.
How much does STACY COHEN-BARRERA, PAC prescribe under Medicare Part D?
In 2023, STACY COHEN-BARRERA, PAC wrote 267 Medicare Part D claims totaling $4K in drug costs for 166 beneficiaries.
Where is STACY COHEN-BARRERA, PAC located?
STACY COHEN-BARRERA, PAC is located at 24331 EL TORO RD STE 200, LAGUNA WOODS, CA, 92637. Phone: (495) 863-3200.
What is STACY COHEN-BARRERA, PAC's NPI number?
STACY COHEN-BARRERA, PAC's National Provider Identifier (NPI) is 1689615361, issued on 06/10/2006.
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 STACY COHEN-BARRERA, PAC prescribe most often?
Based on 2023 Medicare Part D data, STACY COHEN-BARRERA, PAC's most frequently prescribed drugs include Azithromycin, Albuterol Sulfate Hfa, Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STACY COHEN-BARRERA, PAC accept Medicare?
STACY COHEN-BARRERA, PAC appears in CMS Medicare data with 267 Part D claims and 166 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STACY COHEN-BARRERA, PAC's credentials?
STACY COHEN-BARRERA, PAC's NPI is 1689615361 with credentials PAC. 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