2026 NPPES data Nephrology Physician NPI 1972868347 M.D.
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PAUL OZUZUN, M.D.

Nephrology Physician in NEWPORT BEACH, 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
2K
Medicare Part D claims · 336 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.2K
99 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

PAUL OZUZUN, M.D. filed 1,840 Medicare Part D claims in 2023 as a Nephrology Physician in NEWPORT BEACH, California, prescribing 92% generic.

2K
Part D claims, 2023
92%
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.

PAUL OZUZUN, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

1,840 Top 17% higher than 83% 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%). This entry sits in this band. 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)

PAUL OZUZUN, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 PAUL OZUZUN, M.D.?

Quality data not reported

NPI registry status

Active

Issued 07/11/2012

NPI 1972868347

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

1,840 27% 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).

PAUL OZUZUN, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at 1501 SUPERIOR AVE STE 205, NEWPORT BEACH, CA, 92663, with a listed phone of (949) 642-4974. NPI 1972868347 was issued on 07/11/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what OZUZUN 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 1,840 prescription claims written by this provider, covering 336 Medicare beneficiaries and totaling roughly $184K in drug spend, split 8% brand-name and 92% 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

1501 SUPERIOR AVE STE 205
NEWPORT BEACH, CA 92663

Provider Details

NPI 1972868347
Specialty Nephrology Physician
Credentials M.D.
Gender Male
NPI Issued 07/11/2012

Hospital and facility affiliations

Facilities where PAUL OZUZUN, 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.

SOUTHERN CALIFORNIA KIDNEY ASSOCIATES INC
NEWPORT BEACH, 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 PAUL OZUZUN, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$2.2K

Largest payer

Vifor Pharma, 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 PAUL OZUZUN, M.D.. To verify PAUL OZUZUN, M.D.'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.

Brand vs generic prescribing mix · Generic-heavy

PAUL OZUZUN, M.D. — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 1,840 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.

1,840
Total Claims
$184K
Total Drug Cost
336
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,234
Total Day Supply
124,936
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$116K
Generic Drug Cost
$67K
Antibiotic Claims
46

Patient Demographics

Average Patient Age
77.5 years
Avg HCC Risk Score
2.78
Gender Split
43% female / 57% male
Age Distribution
<65: 13, 65-74: 118, 75-84: 135, 85+: 70

Top Prescribed Drugs (Medicare Part D)

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

What PAUL OZUZUN, M.D. 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
Calcitriol
187
Amlodipine Besylate
181
Allopurinol
150
Potassium Citrate Er
Potassium Citrate
131
Hydralazine Hcl
126
Losartan Potassium
79
Hydrochlorothiazide
68
Furosemide
66
Valsartan
60
Bumetanide
45

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

Nephrology Physician Overview

How PAUL OZUZUN, M.D. 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

PAUL OZUZUN, M.D.'s 1,840 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 OZUZUN.

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

Frequently Asked Questions

What is PAUL OZUZUN, M.D.'s specialty?
PAUL OZUZUN, M.D. specializes in Nephrology Physician and practices in NEWPORT BEACH, California. Credentials: M.D..
How much does PAUL OZUZUN, M.D. prescribe under Medicare Part D?
In 2023, PAUL OZUZUN, M.D. wrote 1,840 Medicare Part D claims totaling $184K in drug costs for 336 beneficiaries.
Where is PAUL OZUZUN, M.D. located?
PAUL OZUZUN, M.D. is located at 1501 SUPERIOR AVE STE 205, NEWPORT BEACH, CA, 92663. Phone: (949) 642-4974.
What is PAUL OZUZUN, M.D.'s NPI number?
PAUL OZUZUN, M.D.'s National Provider Identifier (NPI) is 1972868347, issued on 07/11/2012.
Does PAUL OZUZUN, M.D. prescribe more brand-name or generic drugs?
PAUL OZUZUN, M.D.'s prescribing is 8% brand-name and 92% generic drugs by claim count, with $116K 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 PAUL OZUZUN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, PAUL OZUZUN, M.D.'s most frequently prescribed drugs include Calcitriol, Amlodipine Besylate, Allopurinol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does PAUL OZUZUN, M.D. accept Medicare?
PAUL OZUZUN, M.D. appears in CMS Medicare data with 1,840 Part D claims and 336 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify PAUL OZUZUN, M.D.'s credentials?
PAUL OZUZUN, M.D.'s NPI is 1972868347 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