2026 NPPES data Pediatric Infectious Diseases Physician NPI 1932301330 M.D.
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NATASHA RYBAK, M.D.

Pediatric Infectious Diseases Physician in PROVIDENCE, 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
540
Medicare Part D claims · 54 beneficiaries · Pediatric Infectious Diseases Physician avg: 244
Generic prescribing
70%
generic claims · 30% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: NATASHA RYBAK, M.D. is a Pediatric Infectious Diseases Physician ([object Object]) practicing in PROVIDENCE, Rhode Island with a Medicare Part D prescribing footprint of 540 claims across 54 beneficiaries — 30% brand-name prescribing .

What stands out: NATASHA RYBAK, M.D. filed 540 Medicare Part D claims in 2023 across PROVIDENCE, Rhode Island. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

NATASHA RYBAK, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

NATASHA RYBAK, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 06/05/2007

NPI 1932301330

Primary specialty

Pediatric Infectious Diseases Physician

Niche

1,066 US NPIs in this specialty

Medicare Part D claims

540 121% vs specialty avg

2023 prescription claims

Specialty avg: 244

Specialty distribution in Rhode Island

How Pediatric Infectious Diseases Physician compares to other specialties among Rhode Island providers

Rhode Island providers

Pediatric Infectious Diseases Physician share within Rhode Island

1. Pediatric Infectious Diseases Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Pediatric Infectious Diseases Physician share within Rhode Island

Specialty board-certification context

Estimated specialty board-certified rate — Pediatric Infectious Diseases Physician (ABMS / AOA reference)

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

Est. board-certified rate (Pediatric Infectious Diseases Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Pediatric Infectious Diseases 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).

NATASHA RYBAK, M.D. is a Pediatric Infectious Diseases Physician provider practicing in PROVIDENCE, Rhode Island, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1932301330. 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.

NATASHA RYBAK, M.D. appears in the CMS NPPES registry as a Pediatric Infectious Diseases Physician provider holding M.D. credentials at 1125 N MAIN ST, PROVIDENCE, RI, 02904, with a listed phone of (401) 793-2928. NPI 1932301330 was issued on 06/05/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RYBAK 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 540 prescription claims written by this provider, covering 54 Medicare beneficiaries and totaling roughly $691K in drug spend, split 30% brand-name and 70% generic by claim count. 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.

Pediatric Infectious Diseases Physician is a narrow specialty nationwide, with 1,066 enrolled providers across 50 states and an average of 244 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

1125 N MAIN ST
PROVIDENCE, RI 02904

Provider Details

NPI 1932301330
Specialty Pediatric Infectious Diseases Physician
Credentials M.D.
Gender Female
NPI Issued 06/05/2007

Hospital and facility affiliations

Facilities where NATASHA RYBAK, 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.

THE MIRIAM HOSPITAL
★★★★☆ 4/5
PROVIDENCE, RI
Acute Care Hospitals
CMS CCN: 410012
BROWN MEDICINE
PROVIDENCE, 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).

Brand vs generic prescribing mix · Above average

NATASHA RYBAK, M.D. — brand share 30.0%
Specialty average (est.)

30% brand-name claims vs 70% generic, on 540 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.

540
Total Claims
$691K
Total Drug Cost
54
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
615
Total Day Supply
17,211
Brand vs Generic
30% brand / 70% generic
Brand Drug Cost
$650K
Generic Drug Cost
$41K
Antibiotic Claims
112

Patient Demographics

Average Patient Age
63.3 years
Avg HCC Risk Score
1.69
Gender Split
39% female / 61% male
Age Distribution
<65: 22, 65-74: 16, 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
Rifampin
54
Azithromycin
51
Isoniazid
40
Ethambutol Hcl
39
Biktarvy
Bictegrav/Emtricit/Tenofov Ala
27
Dovato
Dolutegravir Sodium/Lamivudine
24
Fluoxetine Hcl
22
Rifabutin
20
Arikayce
Amikacin Liposomal/Neb.Accessr
19
Prezcobix
Darunavir/Cobicistat
19

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

Pediatric Infectious Diseases Physician Overview

How NATASHA RYBAK, M.D. fits within the Pediatric Infectious Diseases Physician landscape nationally.

1,066
Pediatric Infectious Diseases Physician Providers in US
50
States with Pediatric Infectious Diseases Physician
244
Avg Claims per Provider

NATASHA RYBAK, M.D.'s 540 claims are above the specialty average of 244.

Nearby Pediatric Infectious Diseases Physician Providers in Rhode Island

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

Compare Pediatric Infectious Diseases Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is NATASHA RYBAK, M.D.'s specialty?
NATASHA RYBAK, M.D. specializes in Pediatric Infectious Diseases Physician and practices in PROVIDENCE, Rhode Island. Credentials: M.D..
How much does NATASHA RYBAK, M.D. prescribe under Medicare Part D?
In 2023, NATASHA RYBAK, M.D. wrote 540 Medicare Part D claims totaling $691K in drug costs for 54 beneficiaries.
Where is NATASHA RYBAK, M.D. located?
NATASHA RYBAK, M.D. is located at 1125 N MAIN ST, PROVIDENCE, RI, 02904. Phone: (401) 793-2928.
What is NATASHA RYBAK, M.D.'s NPI number?
NATASHA RYBAK, M.D.'s National Provider Identifier (NPI) is 1932301330, issued on 06/05/2007.
Does NATASHA RYBAK, M.D. prescribe more brand-name or generic drugs?
NATASHA RYBAK, M.D.'s prescribing is 30% brand-name and 70% generic drugs by claim count, with $650K in brand drug costs.
How many Pediatric Infectious Diseases Physician providers are there in the US?
There are 1,066 Pediatric Infectious Diseases Physician providers across 50 states in the US. The average Pediatric Infectious Diseases Physician provider writes 244 Medicare Part D claims per year.
What drugs does NATASHA RYBAK, M.D. prescribe most often?
Based on 2023 Medicare Part D data, NATASHA RYBAK, M.D.'s most frequently prescribed drugs include Rifampin, Azithromycin, Isoniazid. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NATASHA RYBAK, M.D. accept Medicare?
NATASHA RYBAK, M.D. appears in CMS Medicare data with 540 Part D claims and 54 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NATASHA RYBAK, M.D.'s credentials?
NATASHA RYBAK, M.D.'s NPI is 1932301330 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