2026 NPPES data Medical Toxicology (Preventive Medicine) Physician NPI 1598981623 MD
Verify on CMS →

ROBIN BERNHOFT, MD

Medical Toxicology (Preventive Medicine) Physician in OJAI, 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
56
Medicare Part D claims · 13 beneficiaries · Medical Toxicology (Preventive Medicine) Physician avg: 196

What the federal data shows

ROBIN BERNHOFT, MD filed 56 Medicare Part D claims in 2023 as a Medical Toxicology (Preventive Medicine) Physician in OJAI, California.

56
Part D claims, 2023

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.

ROBIN BERNHOFT, MD's Medicare Part D volume vs every U.S. prescriber

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

56 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 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-eligible specialty (heuristic — not verified)

ROBIN BERNHOFT, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about ROBIN BERNHOFT, MD?

Quality data not reported

NPI registry status

Active

Issued 04/17/2007

NPI 1598981623

Primary specialty

Medical Toxicology (Preventive Medicine) Physician

Rare

25 US NPIs in this specialty

Medicare Part D claims

56 71% vs specialty avg

2023 prescription claims

Specialty avg: 196

Specialty distribution in California

How Medical Toxicology (Preventive Medicine) Physician compares to other specialties among California providers

California providers

Medical Toxicology (Preventive Medicine) Physician share within California

1. Medical Toxicology (Preventive Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Toxicology (Preventive Medicine) Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Medical Toxicology (Preventive Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Medical Toxicology (Preventive Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Medical Toxicology (Preventive Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Medical Toxicology (Preventive 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).

ROBIN BERNHOFT, MD appears in the CMS NPPES registry as a Medical Toxicology (Preventive Medicine) Physician provider holding MD credentials at 1200 MARICOPA HWY, OJAI, CA, 93023, with a listed phone of (805) 640-0180. NPI 1598981623 was issued on 04/17/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BERNHOFT 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 56 prescription claims written by this provider, covering 13 Medicare beneficiaries and totaling roughly $7K in drug spend. 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.

Medical Toxicology (Preventive Medicine) Physician is a narrow specialty nationwide, with 25 enrolled providers across 12 states and an average of 196 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

1200 MARICOPA HWY
OJAI, CA 93023

Provider Details

NPI 1598981623
Specialty Medical Toxicology (Preventive Medicine) Physician
Credentials MD
Gender Male
NPI Issued 04/17/2007

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 ROBIN BERNHOFT, MD. To verify ROBIN BERNHOFT, 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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

56
Total Claims
$7K
Total Drug Cost
13
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
76
Total Day Supply
1,923
Generic Drug Cost
$804

Patient Demographics

Average Patient Age
69.8 years
Avg HCC Risk Score
0.72

Medical Toxicology (Preventive Medicine) Physician Overview

How ROBIN BERNHOFT, MD fits within the Medical Toxicology (Preventive Medicine) Physician landscape nationally.

25
Medical Toxicology (Preventive Medicine) Physician Providers in US
12
States with Medical Toxicology (Preventive Medicine) Physician
196
Avg Claims per Provider

ROBIN BERNHOFT, MD's 56 claims are below the specialty average of 196.

Nearby Medical Toxicology (Preventive Medicine) Physician Providers in California

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

Compare Medical Toxicology (Preventive Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ROBIN BERNHOFT, MD's specialty?
ROBIN BERNHOFT, MD specializes in Medical Toxicology (Preventive Medicine) Physician and practices in OJAI, California. Credentials: MD.
How much does ROBIN BERNHOFT, MD prescribe under Medicare Part D?
In 2023, ROBIN BERNHOFT, MD wrote 56 Medicare Part D claims totaling $7K in drug costs for 13 beneficiaries.
Where is ROBIN BERNHOFT, MD located?
ROBIN BERNHOFT, MD is located at 1200 MARICOPA HWY, OJAI, CA, 93023. Phone: (805) 640-0180.
What is ROBIN BERNHOFT, MD's NPI number?
ROBIN BERNHOFT, MD's National Provider Identifier (NPI) is 1598981623, issued on 04/17/2007.
How many Medical Toxicology (Preventive Medicine) Physician providers are there in the US?
There are 25 Medical Toxicology (Preventive Medicine) Physician providers across 12 states in the US. The average Medical Toxicology (Preventive Medicine) Physician provider writes 196 Medicare Part D claims per year.
Does ROBIN BERNHOFT, MD accept Medicare?
ROBIN BERNHOFT, MD appears in CMS Medicare data with 56 Part D claims and 13 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ROBIN BERNHOFT, MD's credentials?
ROBIN BERNHOFT, MD's NPI is 1598981623 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.
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