2026 NPPES data Physician Assistant NPI 1578016507 PA-C
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Matt Ma, PA-C

Physician Assistant in Boston, Massachusetts. 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
501
Medicare Part D claims · 156 beneficiaries · Physician Assistant avg: 790
MIPS score
84.4/100
▲ 1 pts above national avg 83.1 · [object Object]

What the federal data shows

Matt Ma, PA-C reported a CMS MIPS final score of 84.4/100 — above the 83.1 national average — and filed 501 Medicare Part D claims in 2023.

84.4/100
MIPS score · +1 vs avg
501
Part D claims, 2023

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.

Matt Ma, 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

84 45th percentile higher than 45% 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 Matt Ma, PA-C?

Near national average

NPI registry status

Active

Issued 07/26/2016

NPI 1578016507

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

501 37% vs specialty avg

2023 prescription claims

Specialty avg: 790

MIPS final score

84.4/100 1.3 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in Massachusetts

How Physician Assistant compares to other specialties among Massachusetts providers

Massachusetts providers

Physician Assistant share within Massachusetts

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

Medicare quality performance — MIPS

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

Near national average
MIPS Final Score
84.4/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Physician Assistant) — 84.4/100 vs national avg 83.1

0%100%National avg83%84.4%
MIPS final score (Physician Assistant) — 84.4/100 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).

Matt Ma, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 800 WASHINGTON ST, Boston, MA, 02111, with a listed phone of (617) 636-5000. NPI 1578016507 was issued on 07/26/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Ma 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 501 prescription claims written by this provider, covering 156 Medicare beneficiaries and totaling roughly $80K in drug spend, with an opioid prescribing rate of 6.8%. 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 84.4/100 for the 2023 performance year (Quality 90.7, Cost 57.4), 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

800 WASHINGTON ST
Boston, MA 02111

Provider Details

NPI 1578016507
Specialty Physician Assistant
Credentials PA-C
Gender Male
NPI Issued 07/26/2016

CMS Quality Score (MIPS)

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

84.4124
Final Score
Avg: 83.1
90.6795
Quality
57.3618
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Matt Ma, 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.

Hoag Clinic
Newport Beach, 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).

License & disciplinary context — Massachusetts BORIM 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 ~38K Massachusetts medical licensees in 2023 — they are NOT specific to Matt Ma, PA-C. To verify Matt Ma, PA-C's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases

BORIM 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 Massachusetts 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.

501
Total Claims
$80K
Total Drug Cost
156
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
958
Total Day Supply
24,826
Generic Drug Cost
$14K
Opioid Claims
34 (6.8% rate)
Antibiotic Claims
30

Patient Demographics

Average Patient Age
75.4 years
Avg HCC Risk Score
1.72
Gender Split
13% female / 87% male

Top Prescribed Drugs (Medicare Part D)

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

What Matt Ma, 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
195
Finasteride
74
Oxybutynin Chloride Er
Oxybutynin Chloride
38
Myrbetriq
Mirabegron
34
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
12
Acetaminophen-Codeine
Acetaminophen With Codeine
11
Alfuzosin Hcl Er
Alfuzosin Hcl
11

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

Physician Assistant Overview

How Matt Ma, 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

Matt Ma, PA-C's 501 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Massachusetts

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

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 Massachusetts 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 Matt Ma, PA-C's specialty?
Matt Ma, PA-C specializes in Physician Assistant and practices in Boston, Massachusetts. Credentials: PA-C.
How much does Matt Ma, PA-C prescribe under Medicare Part D?
In 2023, Matt Ma, PA-C wrote 501 Medicare Part D claims totaling $80K in drug costs for 156 beneficiaries.
What is Matt Ma, PA-C's Medicare quality score?
Matt Ma, PA-C has a CMS MIPS Final Score of 84.4/100 (Quality: 90.7, Cost: 57.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Matt Ma, PA-C located?
Matt Ma, PA-C is located at 800 WASHINGTON ST, Boston, MA, 02111. Phone: (617) 636-5000.
What is Matt Ma, PA-C's NPI number?
Matt Ma, PA-C's National Provider Identifier (NPI) is 1578016507, issued on 07/26/2016.
Does Matt Ma, PA-C prescribe opioids?
Yes, Matt Ma, PA-C had 34 opioid claims in 2023 with an opioid prescribing rate of 6.8%.
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 Matt Ma, PA-C prescribe most often?
Based on 2023 Medicare Part D data, Matt Ma, PA-C's most frequently prescribed drugs include Tamsulosin Hcl, Finasteride, Oxybutynin Chloride Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Matt Ma, PA-C accept Medicare?
Matt Ma, PA-C appears in CMS Medicare data with 501 Part D claims and 156 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Matt Ma, PA-C's credentials?
Matt Ma, PA-C's NPI is 1578016507 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