2026 NPPES data Infectious Disease Physician NPI 1801897665 MD
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Clifford Stirba, MD

Infectious Disease Physician in Norwich, Connecticut. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 8,292 in Infectious Disease Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
2K
Medicare Part D claims · 137 beneficiaries · Infectious Disease Physician avg: 816
MIPS score
92.2/100
▲ 9 pts above national avg 83.1 · Exceptional
Industry payments
$218.74
4 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Clifford Stirba, MD reported a CMS MIPS final score of 92.2/100 - above the 83.1 national average - and filed 2,275 Medicare Part D claims in 2023.

92.2/100
MIPS score · +9 vs avg
2K
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.

Clifford Stirba, MD's MIPS score vs every scored U.S. clinician

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

92 Top 32% higher than 68% 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+: 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

Where Clifford Stirba, MD sits

This provider among infectious disease physician peers

Across the 2,276 infectious disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, Clifford Stirba, MD writes more Part D claims than 93% of them and scores higher on MIPS quality than 69% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100023.647.370.994.5Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 13Clifford Stirba, MD-Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 69
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one infectious disease physician peer from a representative sample of 60; the gold marker is Clifford Stirba, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Clifford Stirba, 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 Clifford Stirba, MD?

High performer (top quartile)

NPI registry status

Active

Issued 08/02/2005

NPI 1801897665

Primary specialty

Infectious Disease Physician

Mid-sized

8,292 US NPIs in this specialty

Medicare Part D claims

2,275 179% vs specialty avg

2023 prescription claims

Specialty avg: 816

MIPS final score

92.2/100 9.1 pts vs avg

Exceptional band

vs 83.1 national avg

Specialty distribution in Connecticut

How Infectious Disease Physician compares to other specialties among Connecticut providers

Connecticut providers
Clinical Social Worker - 8.4%Clinical Social Worker8.4%Student in an Organized Health Care Education/Training Program - 7.7%Student in an Organized Health Care Education/Training Program7.7%Physical Therapist - 4.2%Physical Therapist4.2%Pharmacist - 3.9%Pharmacist3.9%Internal Medicine Physician - 3.4%Internal Medicine Physician3.4%Mental Health Counselor - 3.2%Mental Health Counselor3.2%Infectious Disease Physician - 0.2%Infectious Disease Physician0.2%
Largest specialties in Connecticut (% of in-state providers)

Medicare quality performance, MIPS

Clifford Stirba, MD's 2023 MIPS final score plotted against the Infectious Disease Physician national average

High performer (top quartile)
MIPS Final Score
92.2/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Infectious Disease Physician) - 92.2/100 vs national avg 83.1

0%100%National avg83%92.2%
MIPS final score (Infectious Disease Physician) - 92.2/100 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).

Clifford Stirba, MD appears in the CMS NPPES registry as a Infectious Disease Physician provider holding MD credentials at 7 CUPRAK RD, Norwich, CT, 06360, with a listed phone of (860) 887-9865. NPI 1801897665 was issued on 08/02/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Stirba 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 2,275 prescription claims written by this provider, covering 137 Medicare beneficiaries and totaling roughly $1.9 million in drug spend, with an opioid prescribing rate of 4.4%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 92.2/100 for the 2023 performance year (Quality 92.2, Cost 58.8), compared with the national average of 83.1.

Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 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

7 CUPRAK RD
Norwich, CT 06360

Provider Details

NPI 1801897665
Specialty Infectious Disease Physician
Credentials MD
Gender Male
NPI Issued 08/02/2005

CMS Quality Score (MIPS)

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

92.2292
Final Score
Avg: 83.1
92.153
Quality
58.8274
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Clifford Stirba, 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.

The William W Backus Hospital
Norwich, 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 Clifford Stirba, MD. Source: openpaymentsdata.cms.gov.

Total received

$219

Largest payer

ViiV Healthcare Company

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.

Medicare Part D Prescribing Data

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

2,275
Total Claims
$1.9M
Total Drug Cost
137
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,852
Total Day Supply
110,846
Generic Drug Cost
$123K
Opioid Claims
99 (4.4% rate)
Antibiotic Claims
85

Patient Demographics

Average Patient Age
67.6 years
Avg HCC Risk Score
1.72
Gender Split
43% female / 57% male
Age Distribution
<65: 43, 65-74: 61, 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.

What Clifford Stirba, MD 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
Atorvastatin Calcium
213
Buprenorphine-Naloxone
Buprenorphine Hcl/Naloxone Hcl
192
Tivicay
Dolutegravir Sodium
132
Triumeq
Abacavir/Dolutegravir/Lamivudi
120
Rosuvastatin Calcium
96
Biktarvy
Bictegrav/Emtricit/Tenofov Ala
91
Descovy
Emtricitabine/Tenofov Alafenam
77
Amlodipine Besylate
68
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
56
Lisinopril-Hydrochlorothiazide
Lisinopril/Hydrochlorothiazide
50

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

Infectious Disease Physician Overview

How Clifford Stirba, MD fits within the Infectious Disease Physician landscape nationally.

8,292
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider

Clifford Stirba, MD's 2,275 claims are above the specialty average of 816.

Nearby Infectious Disease Physician Providers in Connecticut

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

Compare Infectious Disease Physician 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 Connecticut medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Infectious Disease Physician 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 Clifford Stirba, MD's specialty?
Clifford Stirba, MD specializes in Infectious Disease Physician and practices in Norwich, Connecticut. Credentials: MD.
How much does Clifford Stirba, MD prescribe under Medicare Part D?
In 2023, Clifford Stirba, MD wrote 2,275 Medicare Part D claims totaling $1.9M in drug costs for 137 beneficiaries.
What is Clifford Stirba, MD's Medicare quality score?
Clifford Stirba, MD has a CMS MIPS Final Score of 92.2/100 (Quality: 92.2, Cost: 58.8). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Clifford Stirba, MD located?
Clifford Stirba, MD is located at 7 CUPRAK RD, Norwich, CT, 06360. Phone: (860) 887-9865.
What is Clifford Stirba, MD's NPI number?
Clifford Stirba, MD's National Provider Identifier (NPI) is 1801897665, issued on 08/02/2005.
Does Clifford Stirba, MD prescribe opioids?
Yes, Clifford Stirba, MD had 99 opioid claims in 2023 with an opioid prescribing rate of 4.4%.
How many Infectious Disease Physician providers are there in the US?
There are 8,292 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does Clifford Stirba, MD prescribe most often?
Based on 2023 Medicare Part D data, Clifford Stirba, MD's most frequently prescribed drugs include Atorvastatin Calcium, Buprenorphine-Naloxone, Tivicay. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Clifford Stirba, MD accept Medicare?
Clifford Stirba, MD appears in CMS Medicare data with 2,275 Part D claims and 137 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Clifford Stirba, MD's credentials?
Clifford Stirba, MD's NPI is 1801897665 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

Compiled from official public sources by the PlainDoctor editorial team.