2026 NPPES data Physician Assistant NPI 1629551221 PA-C
Verify on CMS →

Andrew Merrick, PA-C

Physician Assistant in Wasilla, Alaska. 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
305
Medicare Part D claims · 88 beneficiaries · Physician Assistant avg: 790
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
85.8/100
▲ 3 pts above national avg 83.1 · [object Object]
Industry payments
$200.14
3 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

Andrew Merrick, PA-C reported a CMS MIPS final score of 85.8/100 — above the 83.1 national average — and filed 305 Medicare Part D claims in 2023.

85.8/100
MIPS score · +3 vs avg
305
Part D claims, 2023
87%
generic prescribing
$200.14
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.

Andrew Merrick, PA-C's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

86 49th percentile higher than 49% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

What does the federal data show about Andrew Merrick, PA-C?

High performer (top quartile)

NPI registry status

Active

Issued 09/10/2018

NPI 1629551221

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

305 61% vs specialty avg

2023 prescription claims

Specialty avg: 790

MIPS final score

85.8/100 2.7 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in Alaska

How Physician Assistant compares to other specialties among Alaska providers

Alaska providers

Physician Assistant share within Alaska

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

Medicare quality performance — MIPS

Andrew Merrick, PA-C's 2023 MIPS final score plotted against the Physician Assistant national average

High performer (top quartile)
MIPS Final Score
85.8/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Physician Assistant) — 85.8/100 vs national avg 83.1

0%100%National avg83%85.8%
MIPS final score (Physician Assistant) — 85.8/100 vs national avg 83.1

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).

Andrew Merrick, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 3190 E MERIDIAN PARK LOOP STE 207, Wasilla, AK, 99654, with a listed phone of (907) 373-9460. NPI 1629551221 was issued on 09/10/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Merrick 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 305 prescription claims written by this provider, covering 88 Medicare beneficiaries and totaling roughly $47K in drug spend, split 13% brand-name and 87% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 85.8/100 for the 2023 performance year (Quality 82.9, Cost 67.5), compared with the national average of 83.1.

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

3190 E MERIDIAN PARK LOOP STE 207
Wasilla, AK 99654

Provider Details

NPI 1629551221
Specialty Physician Assistant
Credentials PA-C
Gender Male
NPI Issued 09/10/2018

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

85.8228
Final Score
Avg: 83.1
82.8694
Quality
67.5065
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Andrew Merrick, PA-C 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.

Medical Group OF Alaska
Wasilla, AK

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 Andrew Merrick, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$200

Largest payer

Medical Device Business Services, 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.

Brand vs generic prescribing mix · Typical

Andrew Merrick, PA-C — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 305 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.

305
Total Claims
$47K
Total Drug Cost
88
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
781
Total Day Supply
23,330
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$38K
Generic Drug Cost
$8K

Patient Demographics

Average Patient Age
73.9 years
Avg HCC Risk Score
1.50
Gender Split
40% female / 60% male

Top Prescribed Drugs (Medicare Part D)

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

What Andrew Merrick, 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
Clopidogrel
Clopidogrel Bisulfate
39
Carvedilol
26
Atorvastatin Calcium
25
Lisinopril
25
Metoprolol Succinate
24
Losartan Potassium
18
Metoprolol Tartrate
17
Entresto
Sacubitril/Valsartan
13
Brilinta
Ticagrelor
12
Rosuvastatin Calcium
12

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

Physician Assistant Overview

How Andrew Merrick, PA-C fits within the Physician Assistant landscape nationally.

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

Andrew Merrick, PA-C's 305 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Alaska

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

Compare Physician Assistant 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 Alaska medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Physician Assistant 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.

Frequently Asked Questions

What is Andrew Merrick, PA-C's specialty?
Andrew Merrick, PA-C specializes in Physician Assistant and practices in Wasilla, Alaska. Credentials: PA-C.
How much does Andrew Merrick, PA-C prescribe under Medicare Part D?
In 2023, Andrew Merrick, PA-C wrote 305 Medicare Part D claims totaling $47K in drug costs for 88 beneficiaries.
What is Andrew Merrick, PA-C's Medicare quality score?
Andrew Merrick, PA-C has a CMS MIPS Final Score of 85.8/100 (Quality: 82.9, Cost: 67.5). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Andrew Merrick, PA-C located?
Andrew Merrick, PA-C is located at 3190 E MERIDIAN PARK LOOP STE 207, Wasilla, AK, 99654. Phone: (907) 373-9460.
What is Andrew Merrick, PA-C's NPI number?
Andrew Merrick, PA-C's National Provider Identifier (NPI) is 1629551221, issued on 09/10/2018.
Does Andrew Merrick, PA-C prescribe more brand-name or generic drugs?
Andrew Merrick, PA-C's prescribing is 13% brand-name and 87% generic drugs by claim count, with $38K in brand drug costs.
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 Andrew Merrick, PA-C prescribe most often?
Based on 2023 Medicare Part D data, Andrew Merrick, PA-C's most frequently prescribed drugs include Clopidogrel, Carvedilol, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Andrew Merrick, PA-C accept Medicare?
Andrew Merrick, PA-C appears in CMS Medicare data with 305 Part D claims and 88 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Andrew Merrick, PA-C's credentials?
Andrew Merrick, PA-C's NPI is 1629551221 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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