2026 NPPES data Nephrology Physician NPI 1285660456 MD
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MARJAN CHEGOUNCHI, MD

Nephrology Physician in INGLEWOOD, 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
5K
Medicare Part D claims · 317 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
92.4121/100
▲ 9 pts above national avg 83.1 · [object Object]
Industry payments
$255.13
8 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MARJAN CHEGOUNCHI, MD is a Nephrology Physician ([object Object]) practicing in INGLEWOOD, California with a Medicare Part D prescribing footprint of 5K claims across 317 beneficiaries — 16% brand-name prescribing . Their CMS MIPS Final Score of 92.4121/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $255.13 across 8 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MARJAN CHEGOUNCHI, MD reported a CMS MIPS final score of 92.4121 out of 100, above the 83.1 national average, and filed 4,569 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

MARJAN CHEGOUNCHI, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

MARJAN CHEGOUNCHI, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 06/23/2006

NPI 1285660456

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

4,569 214% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

MIPS final score

92.4121/100 9.312100000000001% pts

Exceptional band

vs 83.1 national avg

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

Medicare quality performance — MIPS

MARJAN CHEGOUNCHI, MD's 2023 MIPS final score plotted against the Nephrology Physician national average

High performer (top quartile)
MIPS Final Score
92.4121/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Nephrology Physician) — 92.4121/100 vs national avg 83.1

0%100%National avg83%92.4%
MIPS final score (Nephrology Physician) — 92.4121/100 vs national avg 83.1

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).

MARJAN CHEGOUNCHI, MD is a Nephrology Physician provider practicing in INGLEWOOD, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1285660456. 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.

MARJAN CHEGOUNCHI, MD appears in the CMS NPPES registry as a Nephrology Physician provider holding MD credentials at 501 E HARDY ST, INGLEWOOD, CA, 90301, with a listed phone of (310) 671-6364. NPI 1285660456 was issued on 06/23/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHEGOUNCHI 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 4,569 prescription claims written by this provider, covering 317 Medicare beneficiaries and totaling roughly $433K in drug spend, split 16% brand-name and 84% generic by claim count, with an opioid prescribing rate of 1.9%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 92.4121/100 for the 2023 performance year (Quality 100, Cost 41.3735), compared with the national average of 83.1.

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

501 E HARDY ST
INGLEWOOD, CA 90301

Provider Details

NPI 1285660456
Specialty Nephrology Physician
Credentials MD
Gender Female
NPI Issued 06/23/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

92.4121
Final Score
Avg: 83.1
100
Quality
41.3735
Cost

Reporting: Individual

Hospital and facility affiliations

Facilities where MARJAN CHEGOUNCHI, 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.

CENTINELA HOSPITALIST MEDICAL GROUP INC
INGLEWOOD, 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 MARJAN CHEGOUNCHI, MD. Source: openpaymentsdata.cms.gov.

Total received

$255

Largest payer

Aurinia Pharma U.S., 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 MARJAN CHEGOUNCHI, MD. To verify MARJAN CHEGOUNCHI, 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.

Brand vs generic prescribing mix · Typical

MARJAN CHEGOUNCHI, MD — brand share 16.0%
Specialty average (est.)

16% brand-name claims vs 84% generic, on 4,569 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.

4,569
Total Claims
$433K
Total Drug Cost
317
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,211
Total Day Supply
167,787
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$310K
Generic Drug Cost
$118K
Opioid Claims
89 (1.9% rate)
Antibiotic Claims
117

Patient Demographics

Average Patient Age
72.0 years
Avg HCC Risk Score
3.34
Gender Split
56% female / 44% male
Age Distribution
<65: 62, 65-74: 137, 75-84: 69, 85+: 49

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Amlodipine Besylate
264
Atorvastatin Calcium
261
Furosemide
234
Gabapentin
181
Lisinopril
145
Hydralazine Hcl
118
Levothyroxine Sodium
115
Metformin Hcl
112
Pantoprazole Sodium
93
Losartan Potassium
92

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

Nephrology Physician Overview

How MARJAN CHEGOUNCHI, 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

MARJAN CHEGOUNCHI, MD's 4,569 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 CHEGOUNCHI.

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

Frequently Asked Questions

What is MARJAN CHEGOUNCHI, MD's specialty?
MARJAN CHEGOUNCHI, MD specializes in Nephrology Physician and practices in INGLEWOOD, California. Credentials: MD.
How much does MARJAN CHEGOUNCHI, MD prescribe under Medicare Part D?
In 2023, MARJAN CHEGOUNCHI, MD wrote 4,569 Medicare Part D claims totaling $433K in drug costs for 317 beneficiaries.
What is MARJAN CHEGOUNCHI, MD's Medicare quality score?
MARJAN CHEGOUNCHI, MD has a CMS MIPS Final Score of 92.4121/100 (Quality: 100, Cost: 41.3735). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MARJAN CHEGOUNCHI, MD located?
MARJAN CHEGOUNCHI, MD is located at 501 E HARDY ST, INGLEWOOD, CA, 90301. Phone: (310) 671-6364.
What is MARJAN CHEGOUNCHI, MD's NPI number?
MARJAN CHEGOUNCHI, MD's National Provider Identifier (NPI) is 1285660456, issued on 06/23/2006.
Does MARJAN CHEGOUNCHI, MD prescribe more brand-name or generic drugs?
MARJAN CHEGOUNCHI, MD's prescribing is 16% brand-name and 84% generic drugs by claim count, with $310K in brand drug costs.
Does MARJAN CHEGOUNCHI, MD prescribe opioids?
Yes, MARJAN CHEGOUNCHI, MD had 89 opioid claims in 2023 with an opioid prescribing rate of 1.9%.
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 MARJAN CHEGOUNCHI, MD prescribe most often?
Based on 2023 Medicare Part D data, MARJAN CHEGOUNCHI, MD's most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARJAN CHEGOUNCHI, MD accept Medicare?
MARJAN CHEGOUNCHI, MD appears in CMS Medicare data with 4,569 Part D claims and 317 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARJAN CHEGOUNCHI, MD's credentials?
MARJAN CHEGOUNCHI, MD's NPI is 1285660456 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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