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2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1053457127 M.D.
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Ramin Mehdian, M.D.

Critical Care Medicine (Internal Medicine) Physician in Newbury Park, California.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,646 in Critical Care Medicine (Internal Medicine) Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
4K
Medicare Part D claims · 521 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
60%
generic claims · 40% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
95.3/100
▲ 12 pts above national avg 83.5 · Exceptional
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Ramin Mehdian, M.D. reported a CMS MIPS final score of 95.3/100 - above the 83.5 national average - and filed 4,449 Medicare Part D claims in 2023.

95.3/100
MIPS score · +12 vs avg
4K
Part D claims, 2023
60%
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.

CMS NPPES provider registry desk

NPI 1053457127 · Critical Care Medicine (Internal Medicine) Physician

NPI-10 · ENUM-MID · TAX-MID · MIPS-ELITE · RX-MID · BOOK-LIGHT · PHOTO-FINISH

  • NPI-10 1053457127
  • ENUM-MID 2007
  • TAX-MID 7K Critical Care
  • MIPS-ELITE 95.3/100
  • RX-MID 4,449
  • BOOK-LIGHT 681 in California
  • PHOTO-FINISH Naeem Ali · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Ramin Mehdian, M.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

95 ≥ 78th percentile 78% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). Below this entry. 90+: 189,403 measured providers (42%). This entry sits in this band. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured providers. 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Ramin Mehdian, M.D. sits

This provider among critical care medicine (internal medicine) physician peers

Across the 1,548 critical care medicine (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Ramin Mehdian, M.D. writes more Part D claims than 97% of them and scores higher on MIPS quality than 79% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.448.873.297.7Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 23Ramin Mehdian, M.D., Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 79
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one critical care medicine (internal medicine) physician peer from a representative sample of 60; the gold marker is Ramin Mehdian, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Ramin Mehdian, M.D. 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).

What does the federal data show about Ramin Mehdian, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 01/29/2007

NPI 1053457127

Primary specialty

Critical Care Medicine (Internal Medicine) Physician

Mid-sized

6,646 US NPIs in this specialty

Medicare Part D claims

4,449 316% vs specialty avg

2023 prescription claims

Specialty avg: 1,069

MIPS final score

95.3/100 11.8 pts vs avg

Exceptional band

vs 83.5 national avg

Specialty distribution in California

How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among California providers

California providers
Behavior Technician17.3%Marriage & Family Therapist5.5%Student in an Organized Heal…5%Mental Health Counselor3.9%Pharmacist3.5%Clinical Social Worker3.1%Critical Care Medicine (Inte…0.1%
Largest specialties in California (% of in-state providers)

Medicare quality performance, MIPS

Ramin Mehdian, M.D.'s 2023 MIPS final score plotted against the Critical Care Medicine (Internal Medicine) Physician national average

High performer (top quartile)
MIPS Final Score
95.3/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%95.3%
MIPS final score (Critical Care Medicine (Internal Medicine) Physician) - 95.3/100 vs national avg 83.5
How MIPS and board certification work

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).

Practice Address

1000 NEWBURY RD
Newbury Park, CA 91320
(805) 499-4143

Provider Details

NPI 1053457127
Specialty Critical Care Medicine (Internal Medicine) Physician
Credentials M.D.
Gender Male
NPI Issued 01/29/2007

CMS Quality Score (MIPS)

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

95.3335
Final Score
Measured-score avg: 83.5
100
Quality
74.3368
Cost

Reporting: Individual

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 Mehdian, M.D.. To verify Ramin Mehdian, 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 · Above average

Ramin Mehdian, M.D. - brand share 40.0%
Critical Care Medicine (Internal Medicine) Physician average

40% brand-name claims vs 60% generic, on 4,449 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.

4,449
Total Claims
$1.4M
Total Drug Cost
521
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,393
Total Day Supply
209,858
Brand vs Generic
40% brand / 60% generic
Brand Drug Cost
$1.3M
Generic Drug Cost
$137K
Opioid Claims
20 (0.4% rate)
Antibiotic Claims
160

Patient Demographics

Average Patient Age
77.5 years
Avg HCC Risk Score
1.71
Gender Split
55% female / 45% male
Age Distribution
<65: 15, 65-74: 185, 75-84: 216, 85+: 105

Top Prescribed Drugs (Medicare Part D)

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

What Ramin Mehdian, 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
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
310
Albuterol Sulfate Hfa
Albuterol Sulfate
289
Breo Ellipta
Fluticasone/Vilanterol
266
Azelastine Hcl
 176
Anoro Ellipta
Umeclidinium Brm/Vilanterol Tr
160
Montelukast Sodium
 150
Prednisone
 150
Atorvastatin Calcium
 127
Losartan Potassium
 113
Furosemide
 111

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

More Critical Care Medicine (Internal Medicine) Physician in CA → All providers in California → Compare specialties →

Critical Care Medicine (Internal Medicine) Physician Overview

How Ramin Mehdian, M.D. fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.

6,646
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,069
Avg Claims per Provider

Ramin Mehdian, M.D.'s 4,449 claims are above the specialty average of 1,069.

Nationwide Critical Care Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Mehdian, both outside California so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (95.3 here).

Naeem Ali 95.3 OH Nitin Bhatt 95.3 OH Kelsey Black 95.3 OH John Christman 95.3 OH

Same NPPES enumeration year (2007)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Pierre Wolfe Fairfax, VA Tracy Luckhardt Birmingham, AL Rajesh Kandasamy Tacoma, WA Ali Soueidan Bay City, MI

Nearby Critical Care Medicine (Internal Medicine) Physician Providers in California

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

One of 681 Critical Care Medicine (Internal Medicine) Physician providers enrolled in California, 5 are shown here.

Dr. Loui Abdelghani
M.D
Stockton, CA
Dr. Moustapha Abidali
DO
Glendora, CA
Dr. Mohammed Abo Khamis
M.D.
Modesto, CA
Dr. Henry Abrons
M.D.
Berkeley, CA
Dr. Noman Absar
MD
Vallejo, CA

Compare Critical Care Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Ramin Mehdian, M.D.'s specialty? ▼
Ramin Mehdian, M.D. specializes in Critical Care Medicine (Internal Medicine) Physician and practices in Newbury Park, California. Credentials: M.D..
How much does Ramin Mehdian, M.D. prescribe under Medicare Part D? ▼
In 2023, Ramin Mehdian, M.D. wrote 4,449 Medicare Part D claims totaling $1.4M in drug costs for 521 beneficiaries.
What is Ramin Mehdian, M.D.'s Medicare quality score? ▼
Ramin Mehdian, M.D. has a CMS MIPS Final Score of 95.3/100 (Quality: 100, Cost: 74.3). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Ramin Mehdian, M.D. located? ▼
Ramin Mehdian, M.D. is located at 1000 NEWBURY RD, Newbury Park, CA, 91320. Phone: (805) 499-4143.
What is Ramin Mehdian, M.D.'s NPI number? ▼
Ramin Mehdian, M.D.'s National Provider Identifier (NPI) is 1053457127, issued on 01/29/2007.
Does Ramin Mehdian, M.D. prescribe more brand-name or generic drugs? ▼
Ramin Mehdian, M.D.'s prescribing is 40% brand-name and 60% generic drugs by claim count, with $1.3M in brand drug costs.
Does Ramin Mehdian, M.D. prescribe opioids? ▼
Yes, Ramin Mehdian, M.D. had 20 opioid claims in 2023 with an opioid prescribing rate of 0.4%.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 6,646 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,069 Medicare Part D claims per year.
What drugs does Ramin Mehdian, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Ramin Mehdian, M.D.'s most frequently prescribed drugs include Trelegy Ellipta, Albuterol Sulfate Hfa, Breo Ellipta. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ramin Mehdian, M.D. accept Medicare? ▼
Ramin Mehdian, M.D. appears in CMS Medicare data with 4,449 Part D claims and 521 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ramin Mehdian, M.D.'s credentials? ▼
Ramin Mehdian, M.D.'s NPI is 1053457127 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

View source datasets and methodology notes
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

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.