2026 NPPES data Cytopathology Physician NPI 1508840786 M.D.
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ROBERT HUBBARD, M.D.

Cytopathology Physician in SAN BERNARDINO, 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
12
Medicare Part D claims · Cytopathology Physician avg: 92
What the federal data reveals: ROBERT HUBBARD, M.D. is a Cytopathology Physician ([object Object]) practicing in SAN BERNARDINO, California with a Medicare Part D prescribing footprint of 12 claims .

What stands out: ROBERT HUBBARD, M.D. filed 12 Medicare Part D claims in 2023 across SAN BERNARDINO, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

ROBERT HUBBARD, M.D. 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).

ROBERT HUBBARD, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 12/01/2005

NPI 1508840786

Primary specialty

Cytopathology Physician

Niche

1,383 US NPIs in this specialty

Medicare Part D claims

12 87% vs specialty avg

2023 prescription claims

Specialty avg: 92

Specialty distribution in California

How Cytopathology Physician compares to other specialties among California providers

California providers

Cytopathology Physician share within California

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

Specialty board-certification context

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

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

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

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

ROBERT HUBBARD, M.D. is a Cytopathology Physician provider practicing in SAN BERNARDINO, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1508840786. 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.

ROBERT HUBBARD, M.D. appears in the CMS NPPES registry as a Cytopathology Physician provider holding M.D. credentials at 1805 MEDICAL CENTER DR, SAN BERNARDINO, CA, 92411, with a listed phone of (909) 806-1433. NPI 1508840786 was issued on 12/01/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HUBBARD 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 12 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $549 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.

Cytopathology Physician is a narrow specialty nationwide, with 1,383 enrolled providers across 50 states and an average of 92 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

1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411

Provider Details

NPI 1508840786
Specialty Cytopathology Physician
Credentials M.D.
Gender Male
NPI Issued 12/01/2005

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 ROBERT HUBBARD, M.D.. To verify ROBERT HUBBARD, 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.

Medicare Part D Prescribing Data

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

12
Total Claims
$549
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
23
Total Day Supply
705
Brand Drug Cost
$0
Generic Drug Cost
$549

Patient Demographics

Average Patient Age
68.0 years
Avg HCC Risk Score
0.26

Cytopathology Physician Overview

How ROBERT HUBBARD, M.D. fits within the Cytopathology Physician landscape nationally.

1,383
Cytopathology Physician Providers in US
50
States with Cytopathology Physician
92
Avg Claims per Provider

ROBERT HUBBARD, M.D.'s 12 claims are below the specialty average of 92.

Nearby Cytopathology Physician Providers in California

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

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

Frequently Asked Questions

What is ROBERT HUBBARD, M.D.'s specialty?
ROBERT HUBBARD, M.D. specializes in Cytopathology Physician and practices in SAN BERNARDINO, California. Credentials: M.D..
How much does ROBERT HUBBARD, M.D. prescribe under Medicare Part D?
In 2023, ROBERT HUBBARD, M.D. wrote 12 Medicare Part D claims totaling $549 in drug costs for N/A beneficiaries.
Where is ROBERT HUBBARD, M.D. located?
ROBERT HUBBARD, M.D. is located at 1805 MEDICAL CENTER DR, SAN BERNARDINO, CA, 92411. Phone: (909) 806-1433.
What is ROBERT HUBBARD, M.D.'s NPI number?
ROBERT HUBBARD, M.D.'s National Provider Identifier (NPI) is 1508840786, issued on 12/01/2005.
How many Cytopathology Physician providers are there in the US?
There are 1,383 Cytopathology Physician providers across 50 states in the US. The average Cytopathology Physician provider writes 92 Medicare Part D claims per year.
Does ROBERT HUBBARD, M.D. accept Medicare?
ROBERT HUBBARD, M.D. appears in CMS Medicare data with 12 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ROBERT HUBBARD, M.D.'s credentials?
ROBERT HUBBARD, M.D.'s NPI is 1508840786 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