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DR. MITCHELL H GRAYSON MD
NPI 1720005267
Pediatrics - Pediatric Allergy/Immunology in Columbus, OH

Active since July 17, 2006PECOS EnrolledAccepts Medicare Assignment
555 S 18TH ST, COLUMBUS, OH 43205(614) 722-6200 Get Directions Write a Review

NPPES record last updated: June 15, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 15, 2022, Mar 16, 2018 (2 updates tracked since 2018).

About Dr. Mitchell H Grayson Md NPPES

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

DR. MITCHELL H GRAYSON MD (NPI 1720005267) is an individual pediatric allergy/immunology provider in Columbus, Ohio, licensed in Ohio (35128597) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of University Of Chicago, Pritzker School Of Medicine (1993).

NPPES Registry Identity

NPI1720005267
Entity TypeIndividualMale
Primary Taxonomy2080P0201X
Provider Legal NameDR. MITCHELL H GRAYSONCredential: MD
Location Address555 S 18TH STColumbus, OH 43205-2654
Mailing Address700 Childrens DrColumbus, OH 43205-2664 · (614) 722-2000
Phone(614) 722-6200
Sole ProprietorYes
Medical School CMSUniversity Of Chicago, Pritzker School Of MedicineGraduated 1993
Enumeration DateJuly 17, 2006
Last NPPES UpdateJune 15, 20262 updates tracked since enumeration
NPPES CertifiedJune 15, 2026
✔ NPI 1720005267 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Allergy/ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0201X
License✔ Licensed in OH · 35128597
Definition
A pediatrician who specializes in the diagnosis and treatment of allergies, allergic reactions, and immunologic diseases in children.
Also ListedInternal Medicine · Allergy & ImmunologyTaxonomy 207RA0201X · License 35128597 (OH)
555 S 18TH ST, Columbus, OH 43205
Open in Google Maps ↗

Secondary Practice Locations 3

Location 17853 Pacer DrDelaware, OH 43015-7571 · Phone (614) 722-6200
Location 24363 All Seasons DrHilliard, OH 43026-2050 · Phone (614) 722-6200
Location 3433 N Cleveland AveWesterville, OH 43082-8095 · Phone (614) 722-6200

Other Identifiers 2

OtherH420330OH · Cgs - Medicare
Medicaid0166454OH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Antidote Health Plan of Ohio, Inc., CareSource.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mitchell H Grayson Md 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 ID1355419995
PECOS Enrollment IDI20160809000964
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Mitchell Grayson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Nationwide Children's Hospital
0.1 mi
Multi-Specialty
700 CHILDRENS DR
Columbus, OH 43205
  • Reassigned Medicare billing, Ohio enrollment
  • 976 clinicians in this Medicare group
NPI 1851179873 (614) 722-2055
Pediatric Academic Association, Inc.
0.1 mi
Pediatrics
700 CHILDRENS DR
Columbus, OH 43205
  • Reassigned Medicare billing, Ohio enrollment
  • 1,246 clinicians in this Medicare group
NPI 1063419943 (614) 722-4579

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Mitchell Grayson's NPI number?

The NPI number for Mitchell Grayson is 1720005267. It was assigned to this individual provider in the NPPES registry on July 17, 2006.

Where is Mitchell Grayson located?

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

What is Mitchell Grayson's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Allergy/Immunology, with taxonomy code 2080P0201X.

Is Mitchell Grayson enrolled in Medicare?

Yes. Mitchell Grayson 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.

Which organizations bill Medicare for Mitchell Grayson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mitchell Grayson reassigns Medicare benefits to 2 organizations: Nationwide Children's Hospital (Columbus, OH) and Pediatric Academic Association, Inc. (Columbus, OH). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mitchell Grayson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mitchell Grayson accept?

Health plans from Anthem Blue Cross and Blue Shield, Antidote Health Plan of Ohio, Inc. and CareSource list Mitchell Grayson 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 Mitchell Grayson was last updated on June 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.