2026 NPPES data Nephrology Physician NPI 1184771974 MD
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MEI-TSUEY HWANG, MD

Nephrology Physician in FRESNO, California. 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
3K
Medicare Part D claims · 475 beneficiaries · Nephrology Physician avg: 1K
Industry payments
$517.85
27 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MEI-TSUEY HWANG, MD filed 3,269 Medicare Part D claims in 2023 as a Nephrology Physician in FRESNO, California.

3K
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.

MEI-TSUEY HWANG, MD's Medicare Part D volume vs every U.S. prescriber

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

3,269 Top 11% higher than 89% 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%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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)

MEI-TSUEY HWANG, 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 MEI-TSUEY HWANG, MD?

Quality data not reported

NPI registry status

Active

Issued 01/04/2007

NPI 1184771974

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

3,269 125% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in California

How Nephrology Physician compares to other specialties among California providers

California providers

Nephrology Physician share within California

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

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).

MEI-TSUEY HWANG, MD is a Nephrology Physician provider practicing in FRESNO, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1184771974. 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.

MEI-TSUEY HWANG, MD appears in the CMS NPPES registry as a Nephrology Physician provider holding MD credentials at 568 E HERNDON AVE, FRESNO, CA, 93720, with a listed phone of (559) 228-6600. NPI 1184771974 was issued on 01/04/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HWANG 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 3,269 prescription claims written by this provider, covering 475 Medicare beneficiaries and totaling roughly $899K in drug spend, with an opioid prescribing rate of 1.1%. 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

568 E HERNDON AVE
FRESNO, CA 93720

Provider Details

NPI 1184771974
Specialty Nephrology Physician
Credentials MD
Gender Female
NPI Issued 01/04/2007

Hospital and facility affiliations

Facilities where MEI-TSUEY HWANG, 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.

CENTRAL CALIFORNIA FACULTY MEDICAL GROUP INC
FRESNO, CA
THE NEPHROLOGY GROUP INC
FRESNO, CA

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 MEI-TSUEY HWANG, MD. Source: openpaymentsdata.cms.gov.

Total received

$518

Largest payer

Amgen 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 — California MBC 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 ~150K California medical licensees in 2023 — they are NOT specific to MEI-TSUEY HWANG, MD. To verify MEI-TSUEY HWANG, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

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

3,269
Total Claims
$899K
Total Drug Cost
475
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,120
Total Day Supply
208,664
Generic Drug Cost
$207K
Opioid Claims
37 (1.1% rate)
Antibiotic Claims
17

Patient Demographics

Average Patient Age
69.8 years
Avg HCC Risk Score
4.26
Gender Split
55% female / 45% male
Age Distribution
<65: 124, 65-74: 150, 75-84: 144, 85+: 57

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Losartan Potassium
273
Amlodipine Besylate
239
Furosemide
158
Hydralazine Hcl
144
Lisinopril
143
Sevelamer Carbonate
138
Atorvastatin Calcium
131
Carvedilol
113
Vascepa
Icosapent Ethyl
98
Prosol
Parenteral Amino Acid 20% No.1
90

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

Nephrology Physician Overview

How MEI-TSUEY HWANG, 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

MEI-TSUEY HWANG, MD's 3,269 claims are above the specialty average of 1,454.

Nearby Nephrology Physician Providers in California

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

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

Frequently Asked Questions

What is MEI-TSUEY HWANG, MD's specialty?
MEI-TSUEY HWANG, MD specializes in Nephrology Physician and practices in FRESNO, California. Credentials: MD.
How much does MEI-TSUEY HWANG, MD prescribe under Medicare Part D?
In 2023, MEI-TSUEY HWANG, MD wrote 3,269 Medicare Part D claims totaling $899K in drug costs for 475 beneficiaries.
Where is MEI-TSUEY HWANG, MD located?
MEI-TSUEY HWANG, MD is located at 568 E HERNDON AVE, FRESNO, CA, 93720. Phone: (559) 228-6600.
What is MEI-TSUEY HWANG, MD's NPI number?
MEI-TSUEY HWANG, MD's National Provider Identifier (NPI) is 1184771974, issued on 01/04/2007.
Does MEI-TSUEY HWANG, MD prescribe opioids?
Yes, MEI-TSUEY HWANG, MD had 37 opioid claims in 2023 with an opioid prescribing rate of 1.1%.
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 MEI-TSUEY HWANG, MD prescribe most often?
Based on 2023 Medicare Part D data, MEI-TSUEY HWANG, MD's most frequently prescribed drugs include Losartan Potassium, Amlodipine Besylate, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MEI-TSUEY HWANG, MD accept Medicare?
MEI-TSUEY HWANG, MD appears in CMS Medicare data with 3,269 Part D claims and 475 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MEI-TSUEY HWANG, MD's credentials?
MEI-TSUEY HWANG, MD's NPI is 1184771974 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