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KAREN A DIEFENBACH M.D.
NPI 1164658258
Surgery - Pediatric Surgery in Columbus, OH

Active since June 03, 2009PECOS Enrolled
555 S 18TH ST, COLUMBUS, OH 43205(614) 722-6200 Get Directions Write a Review

NPPES record last updated: November 19, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 19, 2024, Aug 10, 2023, Dec 9, 2022 and 1 more (4 updates tracked since 2022).

About Karen A Diefenbach M.d. NPPES

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

KAREN A DIEFENBACH M.D. (NPI 1164658258) is an individual pediatric surgery provider in Columbus, Ohio, licensed in Ohio (35.099337) and active in the NPI registry since June 2009. She is enrolled in Medicare PECOS and maintains 7 additional practice locations.

NPPES Registry Identity

NPI1164658258
Entity TypeIndividualFemale
Primary Taxonomy2086S0120X
Provider Legal NameKAREN A DIEFENBACHCredential: M.D.
Location Address555 S 18TH STColumbus, OH 43205-2654
Mailing Address700 Childrens DrColumbus, OH 43205-2664 · (614) 722-2000
Phone(614) 722-6200
Sole ProprietorNo
Enumeration DateJune 3, 2009
Last NPPES UpdateNovember 19, 20244 updates tracked since enumeration
NPPES CertifiedNovember 19, 2024
✔ NPI 1164658258 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgery · Pediatric SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0120X
License✔ Licensed in OH · 35.099337
Definition
A surgeon with expertise in the management of surgical conditions in premature and newborn infants, children and adolescents.
Also ListedColon & Rectal SurgeryTaxonomy 208C00000X · License 35.099337 (OH)
555 S 18TH ST, Columbus, OH 43205
Open in Google Maps ↗

Secondary Practice Locations 7

Location 15665 Venture DrDublin, OH 43017-2159 · Phone (614) 722-6200
Location 2536 S Trimble RdMansfield, OH 44906-3418 · Phone (614) 722-6200
Location 3455 Executive Campus DrWesterville, OH 43082-8870 · Phone (614) 722-6200
Location 4700 Childrens DrColumbus, OH 43205-2664 · Phone (614) 722-6200
Location 52222 Cherry St Ste 1800Toledo, OH 43608-2679 · Phone (614) 722-4300 · Fax (614) 722-7766
Location 62213 Cherry StToledo, OH 43608-2603 · Phone (419) 251-4300 · Fax (419) 251-7766
Location 726 Hospital DrAthens, OH 45701-2471 · Phone (614) 722-2000

Other Identifiers 1

Medicaid0067098OH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource, McLaren Health Plan Community, Molina Healthcare 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 (PECOS)

Karen A Diefenbach M.d. 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.

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.

LORIE D HAMIWKA MD
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
555 S 18TH ST
COLUMBUS, OH 43205
Franklin County (614) 722-4634
DR. ERIC STEVE MULL D.O
Pediatrics (Pediatric Pulmonology)
555 S 18TH ST
COLUMBUS, OH 43205
Franklin County (614) 722-2000
JOHN DONALD MAHAN MD
Pediatrics (Pediatric Nephrology)
555 S 18TH ST
COLUMBUS, OH 43205
Franklin County (614) 722-4362
ROBERT DAVID MURRAY MD
Pediatrics (Pediatric Gastroenterology)
555 S 18TH ST
COLUMBUS, OH 43205
Franklin County (614) 722-4089
BENEDICTA G ENRILE MD
Pediatrics (Neurodevelopmental Disabilities)
555 S 18TH ST
COLUMBUS, OH 43205
Franklin County (614) 722-2438
WILLIAM MATTHEW SMILEY DO
Pediatrics
555 S 18TH ST
COLUMBUS, OH 43205
Franklin County (614) 722-4950
SARAH K. DRIESBACH FNP
Nurse Practitioner (Family)
555 S 18TH ST
COLUMBUS, OH 43205
Franklin County (614) 722-2000
KENDRA ELAINE BRUNNER APRN, CPNP-PC
Nurse Practitioner (Pediatrics)
555 S 18TH ST
COLUMBUS, OH 43205
Franklin County (614) 722-2000

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 Karen Diefenbach's NPI number?

The NPI number for Karen Diefenbach is 1164658258. It was assigned to this individual provider in the NPPES registry on June 3, 2009.

Where is Karen Diefenbach located?

Karen Diefenbach practices at 555 S 18th St, Columbus, OH 43205. The listed phone number is (614) 722-6200.

What is Karen Diefenbach's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Pediatric Surgery, with taxonomy code 2086S0120X.

Is Karen Diefenbach enrolled in Medicare?

Yes. Karen Diefenbach is registered in the Medicare PECOS enrollment system.

What insurance does Karen Diefenbach accept?

Health plans from CareSource, McLaren Health Plan Community, Molina Healthcare and UnitedHealthcare list Karen Diefenbach 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.

When was this NPI record last updated?

The NPPES record for Karen Diefenbach was last updated on November 19, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.