2026 NPPES data Internal Medicine Physician NPI 1457599185 M.D.
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RAMY ALNAHHAL, M.D.

Internal Medicine Physician in DELANO, 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
13K
Medicare Part D claims · 672 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: RAMY ALNAHHAL, M.D. is a Internal Medicine Physician ([object Object]) practicing in DELANO, California with a Medicare Part D prescribing footprint of 13K claims across 672 beneficiaries — 16% brand-name prescribing .

What stands out: RAMY ALNAHHAL, M.D. filed 13,437 Medicare Part D claims in 2023 across DELANO, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

RAMY ALNAHHAL, M.D. 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).

RAMY ALNAHHAL, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 02/03/2009

NPI 1457599185

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

13,437 395% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

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

Specialty board-certification context

Estimated specialty board-certified rate — Internal Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Internal Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Internal Medicine 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).

RAMY ALNAHHAL, M.D. is a Internal Medicine Physician provider practicing in DELANO, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1457599185. 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.

RAMY ALNAHHAL, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at 1230 JEFFERSON ST, DELANO, CA, 93215, with a listed phone of (661) 725-7793. NPI 1457599185 was issued on 02/03/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALNAHHAL 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 13,437 prescription claims written by this provider, covering 672 Medicare beneficiaries and totaling roughly $1.9 million in drug spend, split 16% brand-name and 84% generic by claim count, with an opioid prescribing rate of 0.2%. 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.

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

1230 JEFFERSON ST
DELANO, CA 93215

Provider Details

NPI 1457599185
Specialty Internal Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 02/03/2009

Hospital and facility affiliations

Facilities where RAMY ALNAHHAL, 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.

ADVENTIST HEALTH DELANO
★★☆☆☆ 2/5
DELANO, CA
Acute Care Hospitals
CMS CCN: 050608
FAMILY HEALTHCARE NETWORK
DELANO, 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).

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 RAMY ALNAHHAL, M.D.. To verify RAMY ALNAHHAL, 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 · Typical

RAMY ALNAHHAL, M.D. — brand share 16.0%
Specialty average (est.)

16% brand-name claims vs 84% generic, on 13,437 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.

13,437
Total Claims
$1.9M
Total Drug Cost
672
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
32,362
Total Day Supply
955,542
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$1.6M
Generic Drug Cost
$347K
Opioid Claims
26 (0.2% rate)
Antibiotic Claims
143

Patient Demographics

Average Patient Age
71.5 years
Avg HCC Risk Score
1.36
Gender Split
50% female / 50% male
Age Distribution
<65: 97, 65-74: 325, 75-84: 185, 85+: 65

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
1,098
Metformin Hcl
671
Losartan Potassium
570
Amlodipine Besylate
539
Alendronate Sodium
479
Levothyroxine Sodium
414
Omeprazole
400
Gabapentin
354
Hydralazine Hcl
330
Albuterol Sulfate Hfa
Albuterol Sulfate
313

* 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 RAMY ALNAHHAL, M.D. 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

RAMY ALNAHHAL, M.D.'s 13,437 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 ALNAHHAL.

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

Frequently Asked Questions

What is RAMY ALNAHHAL, M.D.'s specialty?
RAMY ALNAHHAL, M.D. specializes in Internal Medicine Physician and practices in DELANO, California. Credentials: M.D..
How much does RAMY ALNAHHAL, M.D. prescribe under Medicare Part D?
In 2023, RAMY ALNAHHAL, M.D. wrote 13,437 Medicare Part D claims totaling $1.9M in drug costs for 672 beneficiaries.
Where is RAMY ALNAHHAL, M.D. located?
RAMY ALNAHHAL, M.D. is located at 1230 JEFFERSON ST, DELANO, CA, 93215. Phone: (661) 725-7793.
What is RAMY ALNAHHAL, M.D.'s NPI number?
RAMY ALNAHHAL, M.D.'s National Provider Identifier (NPI) is 1457599185, issued on 02/03/2009.
Does RAMY ALNAHHAL, M.D. prescribe more brand-name or generic drugs?
RAMY ALNAHHAL, M.D.'s prescribing is 16% brand-name and 84% generic drugs by claim count, with $1.6M in brand drug costs.
Does RAMY ALNAHHAL, M.D. prescribe opioids?
Yes, RAMY ALNAHHAL, M.D. had 26 opioid claims in 2023 with an opioid prescribing rate of 0.2%.
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 RAMY ALNAHHAL, M.D. prescribe most often?
Based on 2023 Medicare Part D data, RAMY ALNAHHAL, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Metformin Hcl, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RAMY ALNAHHAL, M.D. accept Medicare?
RAMY ALNAHHAL, M.D. appears in CMS Medicare data with 13,437 Part D claims and 672 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RAMY ALNAHHAL, M.D.'s credentials?
RAMY ALNAHHAL, M.D.'s NPI is 1457599185 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