DR. MARK W DAY D.O
NPI 1225050560
Obstetrics & Gynecology in Middletown, OH

Active since July 24, 2006PECOS EnrolledAccepts Medicare Assignment
84.5/100
CMS Quality Rating
6147 STATE ROUTE 122 STE 110, MIDDLETOWN, OH 45005(513) 261-3500(513) 261-3509 Get Directions Write a Review

NPPES record last updated: February 1, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Feb 1, 2021, Oct 2, 2019, Feb 8, 2019 (3 updates tracked since 2019).

About Dr. Mark W Day D.o NPPES

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

DR. MARK W DAY D.O (NPI 1225050560) is an individual obstetrics & gynecology provider in Middletown, Ohio, licensed in Ohio (34.007014) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Kettering Health Main Campus, and is a graduate of Des Moines University Of Osteopathic Medicine And Health Sciences (1995).

NPPES Registry Identity

NPI1225050560
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameDR. MARK W DAYCredential: D.O
Location Address6147 STATE ROUTE 122 STE 110Middletown, OH 45005-5201
Mailing Address6147 State Route 122 Ste 110Middletown, OH 45005-5201 · (513) 261-3500 · Fax (513) 261-3509
Fax(513) 261-3509
Sole ProprietorYes
Medical School CMSDes Moines University Of Osteopathic Medicine And Health SciencesGraduated 1995
Enumeration DateJuly 24, 2006
Last NPPES UpdateFebruary 1, 20213 updates tracked since enumeration
NPPES CertifiedFebruary 1, 2021
NPI 1225050560 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Licenses Licensed in OH · 34.007014 Licensed in OH · 31-1715747
Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

6147 STATE ROUTE 122 STE 110, Middletown, OH 45005

Other Identifiers 1

Medicaid2118505OH

Accepted 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

Dr. Mark W Day D.o 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 ID6709836034
PECOS Enrollment IDI20050125000636
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.

Hospital Affiliations CMS Care Compare 2

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

Kettering Health Main Campus

Acute Care Hospitals · Kettering, OH
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number360079
Location3535 Southern BoulevardKettering, OH 45429 · Montgomery County
Emergency services Birthing friendly

Kettering Health Dayton

Acute Care Hospitals · Dayton, OH
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number360133
Location405 Grand AvenueDayton, OH 45405 · Montgomery County
Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 45005 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
$68.07 typical visit price
range $17.10 – $135.40
Typical copayment $17.01 (range $4.27 – $33.85)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

84.5/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality81.16
Promoting Interoperability100
Improvement Activities40
Cost67.18

Other Providers at the Same Location NPPES 3

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

Obstetrics & Gynecology
6147 STATE ROUTE 122 STE 110
MIDDLETOWN, OH 45005
Obstetrics & Gynecology
6147 STATE ROUTE 122 STE 110
MIDDLETOWN, OH 45005
Obstetrics & Gynecology
6147 STATE ROUTE 122 STE 110
MIDDLETOWN, OH 45005

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 Mark Day's NPI number?

The NPI number for Mark Day is 1225050560. It was assigned to this individual provider in the NPPES registry on July 24, 2006.

Where is Mark Day located?

Mark Day practices at 6147 State Route 122 Ste 110, Middletown, OH 45005. The listed phone number is (513) 261-3500.

What is Mark Day's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Mark Day enrolled in Medicare?

Yes. Mark Day 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 Mark Day accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 4 other insurers list Mark Day 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 Mark Day affiliated with any hospitals?

According to CMS data, Mark Day is affiliated with Kettering Health Main Campus and Kettering Health Dayton.

When was this NPI record last updated?

The NPPES record for Mark Day was last updated on February 1, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.