1. Home
  2. Directory
  3. Ohio
  4. Fremont
  5. Emergency Medicine
  6. NPI Profile

ERNEST JOHN BUCK M.D.
NPI 1861504987
Emergency Medicine in Fremont, OH

Active since August 31, 2006PECOS EnrolledAccepts Medicare Assignment
715 S TAFT AVE, FREMONT, OH 43420(419) 334-6621(419) 334-6649 Get Directions Write a Review

NPPES record last updated: February 7, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Ernest John Buck M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ERNEST JOHN BUCK M.D. (NPI 1861504987) is an individual emergency medicine provider in Fremont, Ohio, licensed in Ohio (35066347) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Ingalls Memorial Hospital, and maintains 6 additional practice locations.

NPPES Registry Identity

NPI1861504987
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameERNEST JOHN BUCKCredential: M.D.
Location Address715 S TAFT AVEFremont, OH 43420-3200
Mailing Address715 S Taft AveFremont, OH 43420-3200 · (419) 334-6621 · Fax (419) 334-6649
Phone(419) 334-6621
Fax(419) 334-6649
Sole ProprietorNo
Medical School CMSLoma Linda University School Of MedicineGraduated 1992
Enumeration DateAugust 31, 2006
Last NPPES UpdateFebruary 7, 2025
NPPES CertifiedFebruary 4, 2025
✔ NPI 1861504987 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in OH · 35066347✔ Licensed in TX · T1911
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
715 S TAFT AVE, Fremont, OH 43420
Open in Google Maps ↗

Secondary Practice Locations 6

Location 15514 N Big Spring StreetMidland, TX 79705-2697 · Phone (432) 316-2441 · Fax (833) 428-4121
Location 23490 East Yukon RdOdessa, TX 79762-2010 · Phone (432) 520-4086 · Fax (833) 972-5449
Location 36301 Andrews HwyMIdland, TX 79706-3147 · Phone (432) 505-4147 · Fax (833) 449-4803
Location 4616 N Main StreetAndrews, TX 79714-5207 · Phone (432) 505-4146 · Fax (833) 450-0805
Location 56950 Eastridge RoadOdessa, TX 79765-8971 · Phone (432) 505-4145 · Fax (833) 941-0862
Location 64705 Briarwood AveMidland, TX 79707-2639 · Phone (432) 505-4145 · Fax (833) 941-0864

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ernest John Buck M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2567443039
PECOS Enrollment IDI20071026000674, I20081104000687, I20210625002335
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
419 services366 patients
Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
392 services370 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
111 services106 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
50 services46 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ingalls Memorial Hospital

Acute Care Hospitals · Harvey, IL
2/5 CMS rating
OwnershipPhysician
CMS Certification Number140191
Location1 Ingalls DriveHarvey, IL 60426 · Cook County
Emergency services Birthing friendly

Midland Memorial Hospital

Acute Care Hospitals · Midland, TX
2/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number450133
Location400 Rosalind Redfern Grover ParkwayMidland, TX 79701 · Midland County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 43420 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.72 typical visit price
range $54.34 – $166.65
Typical copayment $21.18 (range $13.58 – $41.66)
Most-billed visit code 99203
Established Patient
$96.44 typical visit price
range $17.10 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. DOROTA SYLWIA RYTWINSKI M.D.
Psychiatry & Neurology (Psychiatry)
715 S TAFT AVE, CENTER FOR MENTAL HEALTH AND WELL-BEING
FREMONT, OH 43420
Sandusky County (419) 334-6619
SUZANNE J LEWIS LISW
Social Worker (Clinical)
715 S TAFT AVE
FREMONT, OH 43420
Sandusky County (419) 334-6619
FREMONT EMERGENCY ASSOCIATES INC
Emergency Medicine
715 S TAFT AVE
FREMONT, OH 43420
Sandusky County (419) 332-7331
MATTHEW STEVEN NIENBERG PA
Physician Assistant
715 S TAFT AVE
FREMONT, OH 43420
Sandusky County (419) 334-6639
MS. KIMBERLY S HUTTON PT
Physical Therapist
715 S TAFT AVE
FREMONT, OH 43420
Sandusky County (419) 332-7321
FREMONT PHYSICIANS ASSOCIATION
Exclusive Provider Organization
715 S TAFT AVE
FREMONT, OH 43420
Sandusky County (419) 334-6661
MEMORIAL EMERGENCY SPECIALISTS INC.
Emergency Medicine
715 S TAFT AVE
FREMONT, OH 43420
Sandusky County (419) 332-7321
PULMONARY AND CRITICAL SPECIALISTS INC
Specialist
715 S TAFT AVE, SUITE 188
FREMONT, OH 43420
Sandusky County (419) 843-7800

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ernest Buck's NPI number?

The NPI number for Ernest Buck is 1861504987. It was assigned to this individual provider in the NPPES registry on August 31, 2006.

Where is Ernest Buck located?

Ernest Buck practices at 715 S Taft Ave, Fremont, OH 43420. The listed phone number is (419) 334-6621.

What is Ernest Buck's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Ernest Buck enrolled in Medicare?

Yes. Ernest Buck is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Ernest Buck accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Baylor Scott and White Health Plan and Blue Care Network of Michigan and 2 other insurers list Ernest Buck as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Ernest Buck affiliated with any hospitals?

According to CMS data, Ernest Buck is affiliated with Ingalls Memorial Hospital and Midland Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Ernest Buck was last updated on February 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.