2026 NPPES data Nephrology Physician NPI 1619352713 MD
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NAOMI SHIN, MD

Nephrology Physician in NEW 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
712
Medicare Part D claims · 186 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$185.19
4 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

NAOMI SHIN, MD filed 712 Medicare Part D claims in 2023 as a Nephrology Physician in NEW HAVEN, Connecticut, prescribing 84% generic.

712
Part D claims, 2023
84%
generic prescribing
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.

NAOMI SHIN, MD's Medicare Part D volume vs every U.S. prescriber

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

712 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)

NAOMI SHIN, MD 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).

What does the federal data show about NAOMI SHIN, MD?

Quality data not reported

NPI registry status

Active

Issued 07/30/2015

NPI 1619352713

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

712 51% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in Connecticut

How Nephrology Physician compares to other specialties among Connecticut providers

Connecticut providers

Nephrology Physician share within Connecticut

1. Nephrology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nephrology Physician share within Connecticut

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Nephrology 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).

NAOMI SHIN, MD appears in the CMS NPPES registry as a Nephrology Physician provider holding MD credentials at 20 YORK ST, NEW HAVEN, CT, 06510, with a listed phone of (203) 688-4242. NPI 1619352713 was issued on 07/30/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SHIN 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 712 prescription claims written by this provider, covering 186 Medicare beneficiaries and totaling roughly $150K in drug spend, split 16% brand-name and 84% 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.

Nephrology Physician is a mid-sized specialty nationwide, with 10,534 enrolled providers across 55 states and an average of 1,454 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

20 YORK ST
NEW HAVEN, CT 06510

Provider Details

NPI 1619352713
Specialty Nephrology Physician
Credentials MD
Gender Female
NPI Issued 07/30/2015

Hospital and facility affiliations

Facilities where NAOMI SHIN, 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.

CAMBRIDGE PUBLIC HEALTH COMMISSION
CAMBRIDGE, MA
MOUNT AUBURN PROFESSIONAL SERVICES INC
CAMBRIDGE, MA

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 NAOMI SHIN, MD. Source: openpaymentsdata.cms.gov.

Total received

$185

Largest payer

Bayer Healthcare Pharmaceuticals 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.

Brand vs generic prescribing mix · Typical

NAOMI SHIN, MD — brand share 16.0%
Specialty average (est.)

16% brand-name claims vs 84% generic, on 712 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.

712
Total Claims
$150K
Total Drug Cost
186
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,650
Total Day Supply
47,977
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$128K
Generic Drug Cost
$22K

Patient Demographics

Average Patient Age
77.0 years
Avg HCC Risk Score
2.44
Gender Split
49% female / 51% male

Top Prescribed Drugs (Medicare Part D)

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

What NAOMI SHIN, 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
Lisinopril
74
Amlodipine Besylate
73
Torsemide
67
Losartan Potassium
42
Calcitriol
36
Furosemide
35
Clinisol
Parenteral Amino Acid 15% No.5
32
Calcium Acetate
28
Lokelma
Sodium Zirconium Cyclosilicate
22
Sevelamer Carbonate
21

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

Nephrology Physician Overview

How NAOMI SHIN, MD fits within the Nephrology Physician landscape nationally.

10,534
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider

NAOMI SHIN, MD's 712 claims are below the specialty average of 1,454.

Nearby Nephrology Physician Providers in Connecticut

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

Compare Nephrology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is NAOMI SHIN, MD's specialty?
NAOMI SHIN, MD specializes in Nephrology Physician and practices in NEW HAVEN, Connecticut. Credentials: MD.
How much does NAOMI SHIN, MD prescribe under Medicare Part D?
In 2023, NAOMI SHIN, MD wrote 712 Medicare Part D claims totaling $150K in drug costs for 186 beneficiaries.
Where is NAOMI SHIN, MD located?
NAOMI SHIN, MD is located at 20 YORK ST, NEW HAVEN, CT, 06510. Phone: (203) 688-4242.
What is NAOMI SHIN, MD's NPI number?
NAOMI SHIN, MD's National Provider Identifier (NPI) is 1619352713, issued on 07/30/2015.
Does NAOMI SHIN, MD prescribe more brand-name or generic drugs?
NAOMI SHIN, MD's prescribing is 16% brand-name and 84% generic drugs by claim count, with $128K in brand drug costs.
How many Nephrology Physician providers are there in the US?
There are 10,534 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does NAOMI SHIN, MD prescribe most often?
Based on 2023 Medicare Part D data, NAOMI SHIN, MD's most frequently prescribed drugs include Lisinopril, Amlodipine Besylate, Torsemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NAOMI SHIN, MD accept Medicare?
NAOMI SHIN, MD appears in CMS Medicare data with 712 Part D claims and 186 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NAOMI SHIN, MD's credentials?
NAOMI SHIN, MD's NPI is 1619352713 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