2026 NPPES data Medical Physician Assistant NPI 1275827115 RPA-C, M.S.
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SHIVANNAH CHIATAR, RPA-C, M.S.

Medical Physician Assistant in BAY SHORE, New York. 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
823
Medicare Part D claims · 116 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.5K
80 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

SHIVANNAH CHIATAR, RPA-C, M.S. filed 823 Medicare Part D claims in 2023 as a Medical Physician Assistant in BAY SHORE, New York, prescribing 83% generic.

823
Part D claims, 2023
83%
generic prescribing
$2.5K
industry payments (Sunshine Act)

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.

SHIVANNAH CHIATAR, RPA-C, M.S.'s Medicare Part D volume vs every U.S. prescriber

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

823 Top 27% higher than 73% 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%). Below this entry. 800–1,000: 40,919 prescribers (3%). This entry sits in this band. 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

What does the federal data show about SHIVANNAH CHIATAR, RPA-C, M.S.?

Quality data not reported

NPI registry status

Active

Issued 06/08/2011

NPI 1275827115

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

823 24% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in New York

How Medical Physician Assistant compares to other specialties among New York providers

New York providers

Medical Physician Assistant share within New York

1. Medical Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Physician Assistant share within New York

Specialty board-certification context

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

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

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

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

SHIVANNAH CHIATAR, RPA-C, M.S. appears in the CMS NPPES registry as a Medical Physician Assistant provider holding RPA-C, M.S. credentials at 40 E MAIN ST, BAY SHORE, NY, 11706, with a listed phone of (631) 647-8765. NPI 1275827115 was issued on 06/08/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHIATAR 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 823 prescription claims written by this provider, covering 116 Medicare beneficiaries and totaling roughly $172K in drug spend, split 17% brand-name and 83% 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.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 enrolled providers across 55 states and an average of 1,077 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

40 E MAIN ST
BAY SHORE, NY 11706

Provider Details

NPI 1275827115
Specialty Medical Physician Assistant
Credentials RPA-C, M.S.
Gender Female
NPI Issued 06/08/2011

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 SHIVANNAH CHIATAR, RPA-C, M.S.. Source: openpaymentsdata.cms.gov.

Total received

$2.5K

Largest payer

ABBVIE INC.

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.

License & disciplinary context — New York NYSBPMC 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 ~100K New York medical licensees in 2023 — they are NOT specific to SHIVANNAH CHIATAR, RPA-C, M.S.. To verify SHIVANNAH CHIATAR, RPA-C, M.S.'s current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases

NYSBPMC 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 New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

SHIVANNAH CHIATAR, RPA-C, M.S. — brand share 17.0%
Specialty average (est.)

17% brand-name claims vs 83% generic, on 823 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.

823
Total Claims
$172K
Total Drug Cost
116
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,922
Total Day Supply
56,791
Brand vs Generic
17% brand / 83% generic
Brand Drug Cost
$152K
Generic Drug Cost
$18K
Antibiotic Claims
25

Patient Demographics

Average Patient Age
70.9 years
Avg HCC Risk Score
1.06
Gender Split
61% female / 39% male

Top Prescribed Drugs (Medicare Part D)

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

What SHIVANNAH CHIATAR, RPA-C, M.S. 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
Amlodipine Besylate
49
Atorvastatin Calcium
48
Metformin Hcl
41
Lisinopril
35
Levothyroxine Sodium
31
Omeprazole
31
Simvastatin
31
Losartan Potassium
30
Albuterol Sulfate Hfa
Albuterol Sulfate
19
Mounjaro
Tirzepatide
19

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

Medical Physician Assistant Overview

How SHIVANNAH CHIATAR, RPA-C, M.S. fits within the Medical Physician Assistant landscape nationally.

40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

SHIVANNAH CHIATAR, RPA-C, M.S.'s 823 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in New York

Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as CHIATAR.

Compare Medical Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is SHIVANNAH CHIATAR, RPA-C, M.S.'s specialty?
SHIVANNAH CHIATAR, RPA-C, M.S. specializes in Medical Physician Assistant and practices in BAY SHORE, New York. Credentials: RPA-C, M.S..
How much does SHIVANNAH CHIATAR, RPA-C, M.S. prescribe under Medicare Part D?
In 2023, SHIVANNAH CHIATAR, RPA-C, M.S. wrote 823 Medicare Part D claims totaling $172K in drug costs for 116 beneficiaries.
Where is SHIVANNAH CHIATAR, RPA-C, M.S. located?
SHIVANNAH CHIATAR, RPA-C, M.S. is located at 40 E MAIN ST, BAY SHORE, NY, 11706. Phone: (631) 647-8765.
What is SHIVANNAH CHIATAR, RPA-C, M.S.'s NPI number?
SHIVANNAH CHIATAR, RPA-C, M.S.'s National Provider Identifier (NPI) is 1275827115, issued on 06/08/2011.
Does SHIVANNAH CHIATAR, RPA-C, M.S. prescribe more brand-name or generic drugs?
SHIVANNAH CHIATAR, RPA-C, M.S.'s prescribing is 17% brand-name and 83% generic drugs by claim count, with $152K in brand drug costs.
How many Medical Physician Assistant providers are there in the US?
There are 40,527 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does SHIVANNAH CHIATAR, RPA-C, M.S. prescribe most often?
Based on 2023 Medicare Part D data, SHIVANNAH CHIATAR, RPA-C, M.S.'s most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SHIVANNAH CHIATAR, RPA-C, M.S. accept Medicare?
SHIVANNAH CHIATAR, RPA-C, M.S. appears in CMS Medicare data with 823 Part D claims and 116 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SHIVANNAH CHIATAR, RPA-C, M.S.'s credentials?
SHIVANNAH CHIATAR, RPA-C, M.S.'s NPI is 1275827115 with credentials RPA-C, M.S.. 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