MARA ERNST DO
NPI 1538747753
Dermatology in Cincinnati, OH

Active since March 30, 2021PECOS EnrolledAccepts Medicare Assignment
8240 NORTHCREEK DR, CINCINNATI, OH 45236(513) 246-7546(513) 246-5289 Get Directions Write a Review

NPPES record last updated: August 21, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 26, 2025, Jul 12, 2023, Dec 13, 2022 and 1 more (4 updates tracked since 2021).

About Mara Ernst Do NPPES

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

MARA ERNST DO (NPI 1538747753) is an individual dermatology provider in Cincinnati, Ohio, licensed in Ohio (34.016652) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS, is affiliated with Good Samaritan Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1538747753
Entity TypeIndividualFemale
Primary Taxonomy207N00000X
Provider Legal NameMARA ERNSTCredential: DO
Location Address8240 NORTHCREEK DRCincinnati, OH 45236-2377
Mailing Address8240 Northcreek DrCincinnati, OH 45236-2377 · (513) 246-7546 · Fax (513) 246-5289
Fax(513) 246-5289
Sole ProprietorYes
Medical School CMSOhio University, College Of Osteopathic MedicineGraduated 2021
Enumeration DateMarch 30, 2021
Last NPPES UpdateAugust 21, 20254 updates tracked since enumeration
NPPES CertifiedAugust 21, 2025
NPI 1538747753 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License Licensed in OH · 34.016652
Definition
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
8240 NORTHCREEK DR, Cincinnati, OH 45236

Other Names 1

Former Name (1)Mara Leyendecker Do

Secondary Practice Locations 3

Location 12155 Leiter RdMiamisburg, OH 45342-3659 · Phone (937) 384-6800
Location 21475 W 49th PlHialeah, FL 33012-3113 · Phone (305) 558-2500
Location 3379 Dixmyth AveCincinnati, OH 45220-2475 · Phone (513) 246-7000

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

Mara Ernst Do 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 ID6002225810
PECOS Enrollment IDI20250904002056
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.

Good Samaritan Hospital

Acute Care Hospitals · Cincinnati, OH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360134
Location375 Dixmyth AvenueCincinnati, OH 45220 · Hamilton County
Emergency services Birthing friendly

Bethesda North

Acute Care Hospitals · Cincinnati, OH
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number360179
Location10500 Montgomery RoadCincinnati, OH 45242 · Hamilton County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 45236 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
$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.

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.

Internal Medicine (Hematology & Oncology)
8240 NORTHCREEK DR
CINCINNATI, OH 45236
Nurse Practitioner (Primary Care)
8240 NORTHCREEK DR
CINCINNATI, OH 45236
Pediatrics
8240 NORTHCREEK DR
CINCINNATI, OH 45236
Dermatology
8240 NORTHCREEK DR
CINCINNATI, OH 45236
Physical Therapist
8240 NORTHCREEK DR
CINCINNATI, OH 45236
Nurse Practitioner (Family)
8240 NORTHCREEK DR
CINCINNATI, OH 45236
Dietitian, Registered
8240 NORTHCREEK DR
CINCINNATI, OH 45236
Internal Medicine
8240 NORTHCREEK DR
CINCINNATI, OH 45236

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 Mara Ernst's NPI number?

The NPI number for Mara Ernst is 1538747753. It was assigned to this individual provider in the NPPES registry on March 30, 2021. The provider is also known as Mara Leyendecker Do.

Where is Mara Ernst located?

Mara Ernst practices at 8240 Northcreek Dr, Cincinnati, OH 45236. The listed phone number is (513) 246-7546.

What is Mara Ernst's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Mara Ernst enrolled in Medicare?

Yes. Mara Ernst 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 Mara Ernst accept?

Health plans from Oscar Health Insurance list Mara Ernst 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 Mara Ernst affiliated with any hospitals?

According to CMS data, Mara Ernst is affiliated with Good Samaritan Hospital and Bethesda North.

When was this NPI record last updated?

The NPPES record for Mara Ernst was last updated on August 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.