2026 NPPES data Specialist NPI 1174763957 M.D./PHD
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HARRY MA, M.D./PHD

Specialist in NEW LONDON, Connecticut. 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
297
Medicare Part D claims · 114 beneficiaries · Specialist avg: 1K
Generic prescribing
47%
generic claims · 53% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$19.1K
56 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: HARRY MA, M.D./PHD is a Specialist ([object Object]) practicing in NEW LONDON, Connecticut with a Medicare Part D prescribing footprint of 297 claims across 114 beneficiaries — 53% brand-name prescribing . Industry payments of $19.1K across 56 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: HARRY MA, M.D./PHD filed 297 Medicare Part D claims in 2023 across NEW LONDON, Connecticut. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

HARRY MA, M.D./PHD at a glance

Quality data not reported

NPI registry status

Active

Issued 03/06/2009

NPI 1174763957

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

297 80% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in Connecticut

How Specialist compares to other specialties among Connecticut providers

Connecticut providers

Specialist share within Connecticut

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Connecticut

Specialty board-certification context

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

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

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

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

HARRY MA, M.D./PHD is a Specialist provider practicing in NEW LONDON, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D./PHD. NPI: 1174763957. 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.

HARRY MA, M.D./PHD appears in the CMS NPPES registry as a Specialist provider holding M.D./PHD credentials at 2 SHAWS CV STE 203, NEW LONDON, CT, 06320, with a listed phone of (203) 375-2861. NPI 1174763957 was issued on 03/06/2009. 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 297 prescription claims written by this provider, covering 114 Medicare beneficiaries and totaling roughly $166K in drug spend, split 53% brand-name and 47% generic by claim count, with an opioid prescribing rate of 15.2%. 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.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

2 SHAWS CV STE 203
NEW LONDON, CT 06320

Provider Details

NPI 1174763957
Specialty Specialist
Credentials M.D./PHD
Gender Male
NPI Issued 03/06/2009

Hospital and facility affiliations

Facilities where HARRY MA, M.D./PHD 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.

RHODE ISLAND VASCULAR CENTER, LLC
NEW LONDON, CT
SOUTHERN CONNECTICUT VASCULAR CENTER LLC
NEW LONDON, CT

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 HARRY MA, M.D./PHD. Source: openpaymentsdata.cms.gov.

Total received

$19.1K

Largest payer

AngioDynamics, 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 · Brand-heavy

HARRY MA, M.D./PHD — brand share 53.0%
Specialty average (est.)

53% brand-name claims vs 47% generic, on 297 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.

297
Total Claims
$166K
Total Drug Cost
114
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
553
Total Day Supply
15,152
Brand vs Generic
53% brand / 47% generic
Brand Drug Cost
$163K
Generic Drug Cost
$3K
Opioid Claims
45 (15.2% rate)
Antibiotic Claims
14

Patient Demographics

Average Patient Age
71.9 years
Avg HCC Risk Score
2.52
Gender Split
49% female / 51% 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
Xarelto
Rivaroxaban
128
Clopidogrel
Clopidogrel Bisulfate
52
Tramadol Hcl
33
Eliquis
Apixaban
28
Oxycodone Hcl
12
Cilostazol
11

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

Specialist Overview

How HARRY MA, M.D./PHD fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

HARRY MA, M.D./PHD's 297 claims are below the specialty average of 1,474.

Nearby Specialist Providers in Connecticut

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

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is HARRY MA, M.D./PHD's specialty?
HARRY MA, M.D./PHD specializes in Specialist and practices in NEW LONDON, Connecticut. Credentials: M.D./PHD.
How much does HARRY MA, M.D./PHD prescribe under Medicare Part D?
In 2023, HARRY MA, M.D./PHD wrote 297 Medicare Part D claims totaling $166K in drug costs for 114 beneficiaries.
Where is HARRY MA, M.D./PHD located?
HARRY MA, M.D./PHD is located at 2 SHAWS CV STE 203, NEW LONDON, CT, 06320. Phone: (203) 375-2861.
What is HARRY MA, M.D./PHD's NPI number?
HARRY MA, M.D./PHD's National Provider Identifier (NPI) is 1174763957, issued on 03/06/2009.
Does HARRY MA, M.D./PHD prescribe more brand-name or generic drugs?
HARRY MA, M.D./PHD's prescribing is 53% brand-name and 47% generic drugs by claim count, with $163K in brand drug costs.
Does HARRY MA, M.D./PHD prescribe opioids?
Yes, HARRY MA, M.D./PHD had 45 opioid claims in 2023 with an opioid prescribing rate of 15.2%.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does HARRY MA, M.D./PHD prescribe most often?
Based on 2023 Medicare Part D data, HARRY MA, M.D./PHD's most frequently prescribed drugs include Xarelto, Clopidogrel, Tramadol Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does HARRY MA, M.D./PHD accept Medicare?
HARRY MA, M.D./PHD appears in CMS Medicare data with 297 Part D claims and 114 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify HARRY MA, M.D./PHD's credentials?
HARRY MA, M.D./PHD's NPI is 1174763957 with credentials M.D./PHD. 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