2026 NPPES data Otolaryngology Physician NPI 1962418806 MD
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GREGORY BARKDULL, MD

Otolaryngology Physician in EUREKA, 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
181
Medicare Part D claims · 62 beneficiaries · Otolaryngology Physician avg: 509
Industry payments
$36.58
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: GREGORY BARKDULL, MD is a Otolaryngology Physician ([object Object]) practicing in EUREKA, California with a Medicare Part D prescribing footprint of 181 claims across 62 beneficiaries . Industry payments of $36.58 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: GREGORY BARKDULL, MD filed 181 Medicare Part D claims in 2023 across EUREKA, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

GREGORY BARKDULL, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

GREGORY BARKDULL, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 07/31/2006

NPI 1962418806

Primary specialty

Otolaryngology Physician

Mid-sized

10,895 US NPIs in this specialty

Medicare Part D claims

181 64% vs specialty avg

2023 prescription claims

Specialty avg: 509

Specialty distribution in California

How Otolaryngology Physician compares to other specialties among California providers

California providers

Otolaryngology Physician share within California

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

Specialty board-certification context

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

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

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

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

GREGORY BARKDULL, MD is a Otolaryngology Physician provider practicing in EUREKA, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1962418806. 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.

GREGORY BARKDULL, MD appears in the CMS NPPES registry as a Otolaryngology Physician provider holding MD credentials at 2350 BUHNE ST, EUREKA, CA, 95501, with a listed phone of (707) 444-8863. NPI 1962418806 was issued on 07/31/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BARKDULL 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 181 prescription claims written by this provider, covering 62 Medicare beneficiaries and totaling roughly $8K 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.

Otolaryngology Physician is a mid-sized specialty nationwide, with 10,895 enrolled providers across 54 states and an average of 509 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

2350 BUHNE ST
EUREKA, CA 95501

Provider Details

NPI 1962418806
Specialty Otolaryngology Physician
Credentials MD
Gender Male
NPI Issued 07/31/2006

Hospital and facility affiliations

Facilities where GREGORY BARKDULL, MD 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.

PROVIDENCE MEDICAL FOUNDATION
SANTA ROSA, 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).

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 GREGORY BARKDULL, MD. Source: openpaymentsdata.cms.gov.

Total received

$37

Largest payer

Cochlear Americas

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 GREGORY BARKDULL, MD. To verify GREGORY BARKDULL, 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.

181
Total Claims
$8K
Total Drug Cost
62
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
274
Total Day Supply
6,811
Generic Drug Cost
$7K
Antibiotic Claims
35

Patient Demographics

Average Patient Age
71.3 years
Avg HCC Risk Score
0.96
Gender Split
42% female / 58% 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
Levothyroxine Sodium
20
Ofloxacin
16
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
15

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

Otolaryngology Physician Overview

How GREGORY BARKDULL, MD fits within the Otolaryngology Physician landscape nationally.

10,895
Otolaryngology Physician Providers in US
54
States with Otolaryngology Physician
509
Avg Claims per Provider

GREGORY BARKDULL, MD's 181 claims are below the specialty average of 509.

Nearby Otolaryngology Physician Providers in California

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

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

Frequently Asked Questions

What is GREGORY BARKDULL, MD's specialty?
GREGORY BARKDULL, MD specializes in Otolaryngology Physician and practices in EUREKA, California. Credentials: MD.
How much does GREGORY BARKDULL, MD prescribe under Medicare Part D?
In 2023, GREGORY BARKDULL, MD wrote 181 Medicare Part D claims totaling $8K in drug costs for 62 beneficiaries.
Where is GREGORY BARKDULL, MD located?
GREGORY BARKDULL, MD is located at 2350 BUHNE ST, EUREKA, CA, 95501. Phone: (707) 444-8863.
What is GREGORY BARKDULL, MD's NPI number?
GREGORY BARKDULL, MD's National Provider Identifier (NPI) is 1962418806, issued on 07/31/2006.
How many Otolaryngology Physician providers are there in the US?
There are 10,895 Otolaryngology Physician providers across 54 states in the US. The average Otolaryngology Physician provider writes 509 Medicare Part D claims per year.
What drugs does GREGORY BARKDULL, MD prescribe most often?
Based on 2023 Medicare Part D data, GREGORY BARKDULL, MD's most frequently prescribed drugs include Levothyroxine Sodium, Ofloxacin, Amoxicillin-Clavulanate Potass. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GREGORY BARKDULL, MD accept Medicare?
GREGORY BARKDULL, MD appears in CMS Medicare data with 181 Part D claims and 62 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GREGORY BARKDULL, MD's credentials?
GREGORY BARKDULL, MD's NPI is 1962418806 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