2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1427034784 MD
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RONALD SCHWARTZ, MD

Geriatric Medicine (Internal Medicine) Physician in WEST HAVEN, 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
5K
Medicare Part D claims · 371 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
MIPS score
90.7483/100
▲ 8 pts above national avg 83.1 · [object Object]

What the federal data shows

RONALD SCHWARTZ, MD reported a CMS MIPS final score of 90.7483/100 — above the 83.1 national average — and filed 5,418 Medicare Part D claims in 2023.

90.7483/100
MIPS score · +8 vs avg
5K
Part D claims, 2023
Likely
board-certified (heuristic)

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.

RONALD SCHWARTZ, MD's MIPS score vs every scored U.S. clinician

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

91 Top 40% higher than 60% 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%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. 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

Board certification likely (heuristic — not verified)

RONALD SCHWARTZ, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about RONALD SCHWARTZ, MD?

High performer (top quartile)

NPI registry status

Active

Issued 12/19/2005

NPI 1427034784

Primary specialty

Geriatric Medicine (Internal Medicine) Physician

Niche

4,161 US NPIs in this specialty

Medicare Part D claims

5,418 22% vs specialty avg

2023 prescription claims

Specialty avg: 4,450

MIPS final score

90.7483/100 7.648300000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Connecticut

How Geriatric Medicine (Internal Medicine) Physician compares to other specialties among Connecticut providers

Connecticut providers

Geriatric Medicine (Internal Medicine) Physician share within Connecticut

1. Geriatric Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Geriatric Medicine (Internal Medicine) Physician share within Connecticut

Medicare quality performance — MIPS

RONALD SCHWARTZ, MD's 2023 MIPS final score plotted against the Geriatric Medicine (Internal Medicine) Physician national average

High performer (top quartile)
MIPS Final Score
90.7483/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Geriatric Medicine (Internal Medicine) Physician) — 90.7483/100 vs national avg 83.1

0%100%National avg83%90.7%
MIPS final score (Geriatric Medicine (Internal Medicine) Physician) — 90.7483/100 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).

RONALD SCHWARTZ, MD is a Geriatric Medicine (Internal Medicine) Physician provider practicing in WEST HAVEN, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1427034784. 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.

RONALD SCHWARTZ, MD appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider holding MD credentials at 1 CELLINI PL STE 102, WEST HAVEN, CT, 06516, with a listed phone of (203) 932-6481. NPI 1427034784 was issued on 12/19/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SCHWARTZ 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 5,418 prescription claims written by this provider, covering 371 Medicare beneficiaries and totaling roughly $368K in drug spend, with an opioid prescribing rate of 1.0%. 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 90.7483/100 for the 2023 performance year (Quality 82.2742, Cost 58.9275), compared with the national average of 83.1.

Geriatric Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 4,161 enrolled providers across 52 states and an average of 4,450 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

1 CELLINI PL STE 102
WEST HAVEN, CT 06516

Provider Details

NPI 1427034784
Specialty Geriatric Medicine (Internal Medicine) Physician
Credentials MD
Gender Male
NPI Issued 12/19/2005

CMS Quality Score (MIPS)

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

90.7483
Final Score
Avg: 83.1
82.2742
Quality
58.9275
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where RONALD SCHWARTZ, MD 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.

HHC PHYSICIAN SERVICES PLLC
WALLINGFORD, 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).

Medicare Part D Prescribing Data

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

5,418
Total Claims
$368K
Total Drug Cost
371
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,716
Total Day Supply
181,437
Generic Drug Cost
$122K
Opioid Claims
56 (1.0% rate)
Antibiotic Claims
42

Patient Demographics

Average Patient Age
85.7 years
Avg HCC Risk Score
1.93
Gender Split
68% female / 32% 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
Levothyroxine Sodium
265
Amlodipine Besylate
248
Atorvastatin Calcium
245
Trazodone Hcl
178
Furosemide
172
Eliquis
Apixaban
156
Sertraline Hcl
153
Donepezil Hcl
147
Pantoprazole Sodium
147
Escitalopram Oxalate
138

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

Geriatric Medicine (Internal Medicine) Physician Overview

How RONALD SCHWARTZ, MD fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.

4,161
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider

RONALD SCHWARTZ, MD's 5,418 claims are above the specialty average of 4,450.

Nearby Geriatric Medicine (Internal Medicine) Physician Providers in Connecticut

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

Compare Geriatric Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is RONALD SCHWARTZ, MD's specialty?
RONALD SCHWARTZ, MD specializes in Geriatric Medicine (Internal Medicine) Physician and practices in WEST HAVEN, Connecticut. Credentials: MD.
How much does RONALD SCHWARTZ, MD prescribe under Medicare Part D?
In 2023, RONALD SCHWARTZ, MD wrote 5,418 Medicare Part D claims totaling $368K in drug costs for 371 beneficiaries.
What is RONALD SCHWARTZ, MD's Medicare quality score?
RONALD SCHWARTZ, MD has a CMS MIPS Final Score of 90.7483/100 (Quality: 82.2742, Cost: 58.9275). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is RONALD SCHWARTZ, MD located?
RONALD SCHWARTZ, MD is located at 1 CELLINI PL STE 102, WEST HAVEN, CT, 06516. Phone: (203) 932-6481.
What is RONALD SCHWARTZ, MD's NPI number?
RONALD SCHWARTZ, MD's National Provider Identifier (NPI) is 1427034784, issued on 12/19/2005.
Does RONALD SCHWARTZ, MD prescribe opioids?
Yes, RONALD SCHWARTZ, MD had 56 opioid claims in 2023 with an opioid prescribing rate of 1.0%.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US?
There are 4,161 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
What drugs does RONALD SCHWARTZ, MD prescribe most often?
Based on 2023 Medicare Part D data, RONALD SCHWARTZ, MD's most frequently prescribed drugs include Levothyroxine Sodium, Amlodipine Besylate, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RONALD SCHWARTZ, MD accept Medicare?
RONALD SCHWARTZ, MD appears in CMS Medicare data with 5,418 Part D claims and 371 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RONALD SCHWARTZ, MD's credentials?
RONALD SCHWARTZ, MD's NPI is 1427034784 with credentials MD. 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