2026 NPPES data Internal Medicine Physician NPI 1659427235 MD
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RAMIN ALIZADEH, MD

Internal Medicine 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
5K
Medicare Part D claims · 270 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
70.3411/100
▼ 13 pts below national avg 83.1 · [object Object]
Industry payments
$25.47
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: RAMIN ALIZADEH, MD is a Internal Medicine Physician ([object Object]) practicing in NEWPORT BEACH, California with a Medicare Part D prescribing footprint of 5K claims across 270 beneficiaries — 14% brand-name prescribing . Their CMS MIPS Final Score of 70.3411/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $25.47 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: RAMIN ALIZADEH, MD reported a CMS MIPS final score of 70.3411 out of 100, below the 83.1 national average, and filed 4,694 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)

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

RAMIN ALIZADEH, MD at a glance

Below national average

NPI registry status

Active

Issued 01/26/2007

NPI 1659427235

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

4,694 73% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

70.3411/100 12.758899999999997% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in California

How Internal Medicine Physician compares to other specialties among California providers

California providers

Internal Medicine Physician share within California

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

Medicare quality performance — MIPS

RAMIN ALIZADEH, MD's 2023 MIPS final score plotted against the Internal Medicine Physician national average

Below national average
MIPS Final Score
70.3411/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Internal Medicine Physician) — 70.3411/100 vs national avg 83.1

0%100%National avg83%70.3%
MIPS final score (Internal Medicine Physician) — 70.3411/100 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).

RAMIN ALIZADEH, MD is a Internal Medicine Physician provider practicing in NEWPORT BEACH, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1659427235. 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.

RAMIN ALIZADEH, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 400 NEWPORT CENTER DR STE 601, NEWPORT BEACH, CA, 92660, with a listed phone of (949) 520-7322. NPI 1659427235 was issued on 01/26/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALIZADEH 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 4,694 prescription claims written by this provider, covering 270 Medicare beneficiaries and totaling roughly $545K in drug spend, split 14% brand-name and 86% generic by claim count, with an opioid prescribing rate of 1.6%. 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 70.3411/100 for the 2023 performance year (Quality 68.9065, Cost 42.595), compared with the national average of 83.1.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

400 NEWPORT CENTER DR STE 601
NEWPORT BEACH, CA 92660

Provider Details

NPI 1659427235
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 01/26/2007

CMS Quality Score (MIPS)

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

70.3411
Final Score
Avg: 83.1
68.9065
Quality
42.595
Cost

Reporting: Individual

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 RAMIN ALIZADEH, MD. Source: openpaymentsdata.cms.gov.

Total received

$25

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 RAMIN ALIZADEH, MD. To verify RAMIN ALIZADEH, 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

RAMIN ALIZADEH, MD — brand share 14.0%
Specialty average (est.)

14% brand-name claims vs 86% generic, on 4,694 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.

4,694
Total Claims
$545K
Total Drug Cost
270
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
9,795
Total Day Supply
279,532
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$422K
Generic Drug Cost
$122K
Opioid Claims
76 (1.6% rate)
Antibiotic Claims
292

Patient Demographics

Average Patient Age
80.3 years
Avg HCC Risk Score
1.15
Gender Split
51% female / 49% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Rosuvastatin Calcium
346
Levothyroxine Sodium
248
Atorvastatin Calcium
118
Famotidine
113
Escitalopram Oxalate
109
Tamsulosin Hcl
106
Gabapentin
104
Losartan Potassium
100
Amlodipine Besylate
98
Pantoprazole Sodium
97

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

Internal Medicine Physician Overview

How RAMIN ALIZADEH, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

RAMIN ALIZADEH, MD's 4,694 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in California

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

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is RAMIN ALIZADEH, MD's specialty?
RAMIN ALIZADEH, MD specializes in Internal Medicine Physician and practices in NEWPORT BEACH, California. Credentials: MD.
How much does RAMIN ALIZADEH, MD prescribe under Medicare Part D?
In 2023, RAMIN ALIZADEH, MD wrote 4,694 Medicare Part D claims totaling $545K in drug costs for 270 beneficiaries.
What is RAMIN ALIZADEH, MD's Medicare quality score?
RAMIN ALIZADEH, MD has a CMS MIPS Final Score of 70.3411/100 (Quality: 68.9065, Cost: 42.595). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is RAMIN ALIZADEH, MD located?
RAMIN ALIZADEH, MD is located at 400 NEWPORT CENTER DR STE 601, NEWPORT BEACH, CA, 92660. Phone: (949) 520-7322.
What is RAMIN ALIZADEH, MD's NPI number?
RAMIN ALIZADEH, MD's National Provider Identifier (NPI) is 1659427235, issued on 01/26/2007.
Does RAMIN ALIZADEH, MD prescribe more brand-name or generic drugs?
RAMIN ALIZADEH, MD's prescribing is 14% brand-name and 86% generic drugs by claim count, with $422K in brand drug costs.
Does RAMIN ALIZADEH, MD prescribe opioids?
Yes, RAMIN ALIZADEH, MD had 76 opioid claims in 2023 with an opioid prescribing rate of 1.6%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does RAMIN ALIZADEH, MD prescribe most often?
Based on 2023 Medicare Part D data, RAMIN ALIZADEH, MD's most frequently prescribed drugs include Rosuvastatin Calcium, Levothyroxine Sodium, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RAMIN ALIZADEH, MD accept Medicare?
RAMIN ALIZADEH, MD appears in CMS Medicare data with 4,694 Part D claims and 270 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RAMIN ALIZADEH, MD's credentials?
RAMIN ALIZADEH, MD's NPI is 1659427235 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