2026 NPPES data Surgery Physician NPI 1427626662 DO
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WILLIAM GUTHMILLER, DO

Surgery Physician in OMAHA, Nebraska. 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.
What the federal data reveals: WILLIAM GUTHMILLER, DO is a Surgery Physician ([object Object]) practicing in OMAHA, Nebraska .

What stands out: WILLIAM GUTHMILLER, DO specializes in Surgery Physician and practices in OMAHA, Nebraska, listed in the federal CMS National Provider Identifier registry. Every detail on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

WILLIAM GUTHMILLER, DO 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).

WILLIAM GUTHMILLER, DO at a glance

Quality data not reported

NPI registry status

Active

Issued 06/14/2021

NPI 1427626662

Primary specialty

Surgery Physician

Mid-sized

36,191 US NPIs in this specialty

Specialty distribution in Nebraska

How Surgery Physician compares to other specialties among Nebraska providers

Nebraska providers

Surgery Physician share within Nebraska

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

Specialty board-certification context

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

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

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

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

WILLIAM GUTHMILLER, DO is a Surgery Physician provider practicing in OMAHA, Nebraska, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DO. NPI: 1427626662. 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.

WILLIAM GUTHMILLER, DO appears in the CMS NPPES registry as a Surgery Physician provider holding DO credentials at 42ND AND EMILE, OMAHA, NE, 68198, with a listed phone of (402) 559-4000. NPI 1427626662 was issued on 06/14/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GUTHMILLER 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Surgery Physician providers operate outside Part D entirely.

Surgery Physician is a mid-sized specialty nationwide, with 36,191 enrolled providers across 56 states and an average of 169 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

42ND AND EMILE
OMAHA, NE 68198

Provider Details

NPI 1427626662
Specialty Surgery Physician
Credentials DO
Gender Male
NPI Issued 06/14/2021

Hospital and facility affiliations

Facilities where WILLIAM GUTHMILLER, DO 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.

ORANGE CITY MUNICIPAL HOSPITAL
ORANGE CITY, IA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Surgery Physician Overview

How WILLIAM GUTHMILLER, DO fits within the Surgery Physician landscape nationally.

36,191
Surgery Physician Providers in US
56
States with Surgery Physician
169
Avg Claims per Provider

Nearby Surgery Physician Providers in Nebraska

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

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

Frequently Asked Questions

What is WILLIAM GUTHMILLER, DO's specialty?
WILLIAM GUTHMILLER, DO specializes in Surgery Physician and practices in OMAHA, Nebraska. Credentials: DO.
Where is WILLIAM GUTHMILLER, DO located?
WILLIAM GUTHMILLER, DO is located at 42ND AND EMILE, OMAHA, NE, 68198. Phone: (402) 559-4000.
What is WILLIAM GUTHMILLER, DO's NPI number?
WILLIAM GUTHMILLER, DO's National Provider Identifier (NPI) is 1427626662, issued on 06/14/2021.
How many Surgery Physician providers are there in the US?
There are 36,191 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 169 Medicare Part D claims per year.
Does WILLIAM GUTHMILLER, DO accept Medicare?
WILLIAM GUTHMILLER, DO appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WILLIAM GUTHMILLER, DO's credentials?
WILLIAM GUTHMILLER, DO's NPI is 1427626662 with credentials DO. 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.
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