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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JOHN JOSEPH ONDREJKA MD
NPI 1770543159
Internal Medicine in Mentor, OH

Active since March 28, 2006PECOS Enrolled
7956 TYLER BLVD, MENTOR, OH 44060(440) 716-1283(440) 716-1605 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 13, 2026, Feb 22, 2016 (2 updates tracked since 2016).

About Dr. John Joseph Ondrejka Md NPPES

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

DR. JOHN JOSEPH ONDREJKA MD (NPI 1770543159) is an individual internal medicine provider in Mentor, Ohio, licensed in Ohio (35-055148) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1770543159
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. JOHN JOSEPH ONDREJKACredential: MD
Location Address7956 TYLER BLVDMentor, OH 44060-4806
Mailing Address510 5th AveChardon, OH 44024-1076 · (440) 286-8908 · Fax (440) 279-1527
Phone(440) 716-1283
Fax(440) 716-1605
Sole ProprietorNo
Enumeration DateMarch 28, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1770543159 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in OH · 35-055148
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
7956 TYLER BLVD, Mentor, OH 44060
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Other Identifiers 7

Other6600162OH · United Healthcare
Medicaid2073581OH
Other80507OH · Qualchoice
Other000000339419OH · Anthem
Other264200000OH · Dept Of Labor
Other341425870042OH · Medical Mutual Of Ohio
Other264200000OH · Federal Black Lung

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. John Joseph Ondrejka Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 44060 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
$126.12 typical visit price
range $54.34 – $166.65
Typical copayment $31.53 (range $13.58 – $41.66)
Most-billed visit code 99204
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 6

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

DR. DAVID ALAN BOWE MD
Pediatrics
7956 TYLER BLVD
MENTOR, OH 44060
Lake County (440) 255-4455
LAKE HOSPITAL SYSTEM, INC
Clinic/Center (Urgent Care)
7956 TYLER BLVD
MENTOR, OH 44060
Lake County (440) 255-6400
CENTER FOR MOLECULAR CANCER DIAGNOSTICS, INC
Clinical Medical Laboratory
7956 TYLER BLVD
MENTOR, OH 44060
Lake County (330) 405-2623
MEREDITH B GAJDA CNP
Nurse Practitioner
7956 TYLER BLVD
MENTOR, OH 44060
Lake County (440) 255-4455
ADAM JOHN RIDENOUR CNP
Nurse Practitioner
7956 TYLER BLVD
MENTOR, OH 44060
Lake County (440) 255-6040
LAKE HOSPITAL SYSTEM, INC.
Family Medicine (Sports Medicine)
7956 TYLER BLVD
MENTOR, OH 44060
Lake County (440) 833-2010

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 John Ondrejka's NPI number?

The NPI number for John Ondrejka is 1770543159. It was assigned to this individual provider in the NPPES registry on March 28, 2006.

Where is John Ondrejka located?

John Ondrejka practices at 7956 Tyler Blvd, Mentor, OH 44060. The listed phone number is (440) 716-1283.

What is John Ondrejka's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is John Ondrejka enrolled in Medicare?

Yes. John Ondrejka is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for John Ondrejka was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days 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.