2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1639123854 MD
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JAMES KLINGER, MD

Critical Care Medicine (Internal Medicine) Physician in RIVERSIDE, Rhode Island. 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
703
Medicare Part D claims · 82 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Industry payments
$2.0K
6 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JAMES KLINGER, MD filed 703 Medicare Part D claims in 2023 as a Critical Care Medicine (Internal Medicine) Physician in RIVERSIDE, Rhode Island.

703
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.

JAMES KLINGER, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

703 Top 29% higher than 71% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

JAMES KLINGER, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 hospital affiliations — 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 JAMES KLINGER, MD?

Quality data not reported

NPI registry status

Active

Issued 05/20/2006

NPI 1639123854

Primary specialty

Critical Care Medicine (Internal Medicine) Physician

Mid-sized

6,631 US NPIs in this specialty

Medicare Part D claims

703 34% vs specialty avg

2023 prescription claims

Specialty avg: 1,069

Specialty distribution in Rhode Island

How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among Rhode Island providers

Rhode Island providers

Critical Care Medicine (Internal Medicine) Physician share within Rhode Island

1. Critical Care Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Critical Care Medicine (Internal Medicine) Physician share within Rhode Island

Specialty board-certification context

Estimated specialty board-certified rate — Critical Care Medicine (Internal Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Critical Care Medicine (Internal Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Critical Care Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Critical Care Medicine (Internal Medicine) 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).

JAMES KLINGER, MD is a Critical Care Medicine (Internal Medicine) Physician provider practicing in RIVERSIDE, Rhode Island, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1639123854. 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.

JAMES KLINGER, MD appears in the CMS NPPES registry as a Critical Care Medicine (Internal Medicine) Physician provider holding MD credentials at 375 WAMPANOAG TRL, RIVERSIDE, RI, 02915, with a listed phone of (401) 649-4070. NPI 1639123854 was issued on 05/20/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KLINGER 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 703 prescription claims written by this provider, covering 82 Medicare beneficiaries and totaling roughly $984K in drug spend. 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.

Critical Care Medicine (Internal Medicine) Physician is a mid-sized specialty nationwide, with 6,631 enrolled providers across 53 states and an average of 1,069 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

375 WAMPANOAG TRL
RIVERSIDE, RI 02915

Provider Details

NPI 1639123854
Specialty Critical Care Medicine (Internal Medicine) Physician
Credentials MD
Gender Male
NPI Issued 05/20/2006

Hospital and facility affiliations

Facilities where JAMES KLINGER, 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.

RHODE ISLAND HOSPITAL
★★★★☆ 4/5
PROVIDENCE, RI
Acute Care Hospitals
CMS CCN: 410007
THE MIRIAM HOSPITAL
★★★★☆ 4/5
PROVIDENCE, RI
Acute Care Hospitals
CMS CCN: 410012
BROWN MEDICINE
RIVERSIDE, RI

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 JAMES KLINGER, MD. Source: openpaymentsdata.cms.gov.

Total received

$2.0K

Largest payer

PFIZER INC.

Most common payment type

Travel and Lodging

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.

Medicare Part D Prescribing Data

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

703
Total Claims
$984K
Total Drug Cost
82
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,032
Total Day Supply
30,336
Generic Drug Cost
$330K

Patient Demographics

Average Patient Age
75.0 years
Avg HCC Risk Score
2.50
Gender Split
62% female / 38% 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
Furosemide
109
Sildenafil Citrate
47
Tadalafil
42
Albuterol Sulfate Hfa
Albuterol Sulfate
41
Eliquis
Apixaban
41
Ambrisentan
40
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
38
Anoro Ellipta
Umeclidinium Brm/Vilanterol Tr
37
Klor-Con M20
Potassium Chloride
22
Opsumit
Macitentan
21

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

Critical Care Medicine (Internal Medicine) Physician Overview

How JAMES KLINGER, MD fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.

6,631
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,069
Avg Claims per Provider

JAMES KLINGER, MD's 703 claims are below the specialty average of 1,069.

Nearby Critical Care Medicine (Internal Medicine) Physician Providers in Rhode Island

Other clinicians with the same primary specialty enrolled in Rhode Island, drawn from the same CMS NPPES roster as KLINGER.

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

Frequently Asked Questions

What is JAMES KLINGER, MD's specialty?
JAMES KLINGER, MD specializes in Critical Care Medicine (Internal Medicine) Physician and practices in RIVERSIDE, Rhode Island. Credentials: MD.
How much does JAMES KLINGER, MD prescribe under Medicare Part D?
In 2023, JAMES KLINGER, MD wrote 703 Medicare Part D claims totaling $984K in drug costs for 82 beneficiaries.
Where is JAMES KLINGER, MD located?
JAMES KLINGER, MD is located at 375 WAMPANOAG TRL, RIVERSIDE, RI, 02915. Phone: (401) 649-4070.
What is JAMES KLINGER, MD's NPI number?
JAMES KLINGER, MD's National Provider Identifier (NPI) is 1639123854, issued on 05/20/2006.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US?
There are 6,631 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,069 Medicare Part D claims per year.
What drugs does JAMES KLINGER, MD prescribe most often?
Based on 2023 Medicare Part D data, JAMES KLINGER, MD's most frequently prescribed drugs include Furosemide, Sildenafil Citrate, Tadalafil. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JAMES KLINGER, MD accept Medicare?
JAMES KLINGER, MD appears in CMS Medicare data with 703 Part D claims and 82 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JAMES KLINGER, MD's credentials?
JAMES KLINGER, MD's NPI is 1639123854 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.
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