2026 NPPES data Hospitalist Physician NPI 1619300092 M.D.
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THOMAS CHIN, M.D.

Hospitalist Physician in SPRINGFIELD, 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
275
Medicare Part D claims · 119 beneficiaries · Hospitalist Physician avg: 888
What the federal data reveals: THOMAS CHIN, M.D. is a Hospitalist Physician ([object Object]) practicing in SPRINGFIELD, Massachusetts with a Medicare Part D prescribing footprint of 275 claims across 119 beneficiaries .

What stands out: THOMAS CHIN, M.D. filed 275 Medicare Part D claims in 2023 across SPRINGFIELD, Massachusetts. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

THOMAS CHIN, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

THOMAS CHIN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 08/20/2013

NPI 1619300092

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

275 69% vs specialty avg

2023 prescription claims

Specialty avg: 888

Specialty distribution in Massachusetts

How Hospitalist Physician compares to other specialties among Massachusetts providers

Massachusetts providers

Hospitalist Physician share within Massachusetts

1. Hospitalist Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hospitalist Physician share within Massachusetts

Specialty board-certification context

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

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

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

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

THOMAS CHIN, M.D. is a Hospitalist Physician provider practicing in SPRINGFIELD, Massachusetts, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1619300092. 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.

THOMAS CHIN, M.D. appears in the CMS NPPES registry as a Hospitalist Physician provider holding M.D. credentials at 759 CHESTNUT ST, SPRINGFIELD, MA, 01107, with a listed phone of (413) 794-6297. NPI 1619300092 was issued on 08/20/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHIN 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 275 prescription claims written by this provider, covering 119 Medicare beneficiaries and totaling roughly $36K in drug spend, with an opioid prescribing rate of 8.4%. 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.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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

759 CHESTNUT ST
SPRINGFIELD, MA 01107

Provider Details

NPI 1619300092
Specialty Hospitalist Physician
Credentials M.D.
Gender Male
NPI Issued 08/20/2013

Hospital and facility affiliations

Facilities where THOMAS CHIN, M.D. 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.

BAYSTATE MEDICAL PRACTICES INC
SPRINGFIELD, MA

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 THOMAS CHIN, M.D.. To verify THOMAS CHIN, M.D.'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.

275
Total Claims
$36K
Total Drug Cost
119
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
300
Total Day Supply
6,371
Generic Drug Cost
$6K
Opioid Claims
23 (8.4% rate)
Antibiotic Claims
49

Patient Demographics

Average Patient Age
68.0 years
Avg HCC Risk Score
3.22
Gender Split
48% female / 52% male
Age Distribution
<65: 36, 65-74: 45, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Pantoprazole Sodium
16
Eliquis
Apixaban
15
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
14
Prednisone
14
Oxycodone Hcl
11

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

Hospitalist Physician Overview

How THOMAS CHIN, M.D. fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

THOMAS CHIN, M.D.'s 275 claims are below the specialty average of 888.

Nearby Hospitalist Physician Providers in Massachusetts

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

Compare Hospitalist Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is THOMAS CHIN, M.D.'s specialty?
THOMAS CHIN, M.D. specializes in Hospitalist Physician and practices in SPRINGFIELD, Massachusetts. Credentials: M.D..
How much does THOMAS CHIN, M.D. prescribe under Medicare Part D?
In 2023, THOMAS CHIN, M.D. wrote 275 Medicare Part D claims totaling $36K in drug costs for 119 beneficiaries.
Where is THOMAS CHIN, M.D. located?
THOMAS CHIN, M.D. is located at 759 CHESTNUT ST, SPRINGFIELD, MA, 01107. Phone: (413) 794-6297.
What is THOMAS CHIN, M.D.'s NPI number?
THOMAS CHIN, M.D.'s National Provider Identifier (NPI) is 1619300092, issued on 08/20/2013.
Does THOMAS CHIN, M.D. prescribe opioids?
Yes, THOMAS CHIN, M.D. had 23 opioid claims in 2023 with an opioid prescribing rate of 8.4%.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does THOMAS CHIN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, THOMAS CHIN, M.D.'s most frequently prescribed drugs include Pantoprazole Sodium, Eliquis, Amoxicillin-Clavulanate Potass. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THOMAS CHIN, M.D. accept Medicare?
THOMAS CHIN, M.D. appears in CMS Medicare data with 275 Part D claims and 119 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THOMAS CHIN, M.D.'s credentials?
THOMAS CHIN, M.D.'s NPI is 1619300092 with credentials M.D.. 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