DR. MARK DAVID EWALT M.D.
NPI 1497998512
Pathology - Molecular Genetic Pathology in New York, NY

Active since April 20, 2009PECOS EnrolledAccepts Medicare Assignment
76.15/100
CMS Quality Rating
1275 YORK AVENUE, DEPT OF PATHOLOGY, BOX #36, NEW YORK, NY 10065(212) 639-8137 Get Directions Write a Review

NPPES record last updated: August 25, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Aug 25, 2021, Mar 17, 2018, Aug 25, 2017 (3 updates tracked since 2017).

About Dr. Mark David Ewalt M.d. NPPES

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

DR. MARK DAVID EWALT M.D. (NPI 1497998512) is an individual molecular genetic pathology provider in New York, New York, licensed in Colorado (DR.0058760) and active in the NPI registry since April 2009. He is enrolled in Medicare PECOS, is affiliated with Riverview Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1497998512
Entity TypeIndividualMale
Primary Taxonomy207ZP0007X
Provider Legal NameDR. MARK DAVID EWALTCredential: M.D.
Location Address1275 YORK AVENUE, DEPT OF PATHOLOGY, BOX #36New York, NY 10065
Mailing Address1275 York Avenue, Dept Of Pathology, Box #36New York, NY 10065 · (212) 639-8137
Sole ProprietorNo
Medical School CMSColumbia University College Of Physicians And SurgeonsGraduated 2009
Enumeration DateApril 20, 2009
Last NPPES UpdateAugust 25, 20213 updates tracked since enumeration
NPPES CertifiedAugust 25, 2021
NPI 1497998512 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyPathology · Molecular Genetic PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0007X
License Licensed in CO · DR.0058760
Definition
A molecular genetic pathologist is expert in the principles, theory and technologies of molecular biology and molecular genetics. This expertise is used to make or confirm diagnoses of Mendelian genetic disorders, disorders of human development, infectious diseases and malignancies, and to assess the natural history of those disorders. A molecular genetic pathologist provides information about gene structure, function and alteration and applies laboratory techniques for diagnosis, treatment and prognosis for individuals with related disorders.
Also ListedPathology · CytopathologyTaxonomy 207ZC0500X · License DR.0058760 (CO)
Also ListedPathology · HematologyTaxonomy 207ZH0000X · License DR.0058760 (CO), A121762 (CA)
1275 YORK AVENUE, New York, NY 10065

Secondary Practice Locations 2

Location 112605 E 16th AveAurora, CO 80045-2545 · Phone (720) 848-0000
Location 28700 Beverly Blvd, SPT Room 4703West Hollywood, CA 90048-1804 · Phone (310) 423-4551

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 David Ewalt M.d. 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 ID4183939226
PECOS Enrollment IDI20201023001759
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.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Interpretation and report of genetic testing 88291
Interpretation and report of genetic testing involves analyzing your DNA to look for changes that could indicate a risk for certain health conditions. The results are then compiled into a report, which provides insights about your genetic health.
613 services518 patients
Molecular pathology procedure; physician interpretation and report G0452
A molecular pathology procedure involves analyzing your body's cells at a molecular level to identify any abnormalities. This can help detect diseases early. A physician will interpret the results and provide a detailed report, explaining the findings clearly.
466 services415 patients

Hospital Affiliations CMS Care Compare 2

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

Riverview Medical Center

Acute Care Hospitals · Red Bank, NJ
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310034
LocationOne Riverview PlazaRed Bank, NJ 07701 · Monmouth County
Emergency services Birthing friendly

Nyu Langone Hospitals

Acute Care Hospitals · New York, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330214
Location550 First AvenueNew York, NY 10016 · New York County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10065 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
$150.24 typical visit price
range $65.69 – $198.19
Typical copayment $37.56 (range $16.42 – $49.54)
Most-billed visit code 99204
Established Patient
$114.88 typical visit price
range $21.20 – $160.66
Typical copayment $28.72 (range $5.30 – $40.16)
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.

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.

76.15/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality70
Improvement Activities40

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.

Nurse Practitioner (Acute Care)
1275 YORK AVENUE
NEW YORK, NY 10065
Radiology (Neuroradiology)
1275 YORK AVENUE, MEMORIAL SLOAN-KETTERING CANCER CENTER
NEW YORK, NY 10065
Student in an Organized Health Care Education/Training Program
1275 YORK AVENUE, DEPARTMENT OF PATHOLOGY & LAB MEDICINE
NEW YORK CITY, NY 10065
Nurse Practitioner (Pediatrics)
1275 YORK AVENUE, 9TH FLOOR
NEW YORK, NY 10065
Pathology (Dermatopathology)
1275 YORK AVENUE, MEMORIAL HOSPITAL/ DEPT. OF PATHOLOGY
NEW YORK, NY 10065
Nurse Practitioner (Family)
1275 YORK AVENUE
NEW YORK, NY 10065
Radiology (Radiation Oncology)
1275 YORK AVENUE, SCHWARTZ 607
NEW YORK, NY 10065
Nurse Practitioner (Acute Care)
1275 YORK AVENUE
NEW YORK, NY 10065

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 Ewalt's NPI number?

The NPI number for Mark Ewalt is 1497998512. It was assigned to this individual provider in the NPPES registry on April 20, 2009.

Where is Mark Ewalt located?

Mark Ewalt practices at 1275 York Avenue Dept Of Pathology, Box #36, New York, NY 10065. The listed phone number is (212) 639-8137.

What is Mark Ewalt's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Molecular Genetic Pathology, with taxonomy code 207ZP0007X.

Is Mark Ewalt enrolled in Medicare?

Yes. Mark Ewalt 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.

Is Mark Ewalt affiliated with any hospitals?

According to CMS data, Mark Ewalt is affiliated with Riverview Medical Center and Nyu Langone Hospitals.

When was this NPI record last updated?

The NPPES record for Mark Ewalt was last updated on August 25, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.