DR. JOHN MCMAHON GROSS M.D.
NPI 1760748065
Pathology - Anatomic Pathology & Clinical Pathology in Baltimore, MD

Active since April 11, 2012PECOS Enrolled
74.39/100
CMS Quality Rating
401 NORTH BROADWAY, WEINBERG 2251, BALTIMORE, MD 21231(410) 614-3653(410) 955-8208 Get Directions Write a Review

NPPES record last updated: August 3, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Aug 3, 2021, Sep 8, 2020, Sep 27, 2019 (3 updates tracked since 2019).

About Dr. John Mcmahon Gross M.d. NPPES

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

DR. JOHN MCMAHON GROSS M.D. (NPI 1760748065) is an individual anatomic pathology & clinical pathology provider in Baltimore, Maryland, licensed in Maryland (D89396) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and maintains a secondary practice location in Omaha.

NPPES Registry Identity

NPI1760748065
Entity TypeIndividualMale
Primary Taxonomy207ZP0102X
Provider Legal NameDR. JOHN MCMAHON GROSSCredential: M.D.
Location Address401 NORTH BROADWAY, WEINBERG 2251Baltimore, MD 21231
Mailing Address9910 Franklin Square Dr Ste 2110Baltimore, MD 21236-4902 · (410) 933-6423
Fax(410) 955-8208
Sole ProprietorNo
Medical School CMSCreighton University School Of MedicineGraduated 2012
Enumeration DateApril 11, 2012
Last NPPES UpdateAugust 3, 20213 updates tracked since enumeration
NPPES CertifiedAugust 3, 2021
NPI 1760748065 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
Licenses Licensed in MD · D89396 Licensed in NE · 7248 Licensed in MN · 66074
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
401 NORTH BROADWAY, Baltimore, MD 21231

Secondary Practice Location 1

Location 1601 N 30th StOmaha, NE 68131-2137 · Phone (402) 280-4412

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Dr. John Mcmahon Gross M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6204050321
PECOS Enrollment IDI20200714002635, I20200721001466
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 9

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.

Pathology examination of tissue using a microscope, intermediate complexity 88305
A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.
323 services226 patients
Special stained specimen slides to examine tissue, each additional procedure 88341
Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.
241 services46 patients
Pathology examination of tissue using a microscope, moderately low complexity 88304
A pathology examination of tissue, moderately low complexity, involves studying a small sample of your body tissue under a microscope. It helps to identify any abnormal cells or diseases. It's a routine procedure, not complex, and provides crucial insights for your diagnosis.
148 services120 patients
Pathology examination of tissue using a microscope, moderately high complexity 88307
A pathology examination of tissue with moderate complexity involves a detailed study of a small tissue sample from your body. Using a microscope, experts analyze the tissue's structure and cells to identify any abnormalities. This helps in diagnosing various health conditions accurately.
134 services102 patients
Special stained specimen slides to examine tissue, initial procedure 88342
This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.
64 services57 patients
Pathology examination of specimen during surgery, first tissue block 88331
A pathology examination during surgery involves the immediate analysis of a removed tissue sample. This helps the surgeon make decisions during your operation. The "first tissue block" refers to the initial sample examined. It's a vital step to ensure your health.
61 services34 patients

Hospital Affiliations CMS Care Compare 3

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

Johns Hopkins Hospital, The

Acute Care Hospitals · Baltimore, MD
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210009
Location600 North Wolfe StreetBaltimore, MD 21287 · Baltimore City County
Emergency services Birthing friendly

Suburban Hospital

Acute Care Hospitals · Bethesda, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210022
Location8600 Old Georgetown RoadBethesda, MD 20814 · Montgomery County
Emergency services

Johns Hopkins Bayview Medical Center

Acute Care Hospitals · Baltimore, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210029
Location4940 Eastern AvenueBaltimore, MD 21224 · Baltimore City County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21231 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
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
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.

74.39/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality64.71
Promoting Interoperability97
Improvement Activities40
Cost52.43

Other Providers at the Same Location NPPES 15

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

Pathology (Anatomic Pathology & Clinical Pathology)
401 NORTH BROADWAY, WEINBERG 2268
BALTIMORE, MD 21231
Nurse Practitioner (Primary Care)
401 NORTH BROADWAY, SUITE 2100
BALTIMORE, MD 21231
Internal Medicine (Hematology & Oncology)
401 NORTH BROADWAY, ROOM 1363
BALTIMORE, MD 21231
Pathology (Anatomic Pathology)
401 NORTH BROADWAY, WEINBERG 2268
BALTIMORE, MD 21231
Nurse Practitioner (Acute Care)
401 NORTH BROADWAY, ROOM 1123
BALTIMORE, MD 21231
Internal Medicine (Hematology & Oncology)
401 NORTH BROADWAY, WEINBERG BDG.
BALTIMORE, MD 21231
Nurse Practitioner (Acute Care)
401 NORTH BROADWAY, THE HARRY AND JEANETTE WEINBERG BUILDING
BALTIMORE, MD 21231
Radiology (Radiation Oncology)
401 NORTH BROADWAY, WEINBERG 1440
BALTIMORE, MD 21231

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 John Gross's NPI number?

The NPI number for John Gross is 1760748065. It was assigned to this individual provider in the NPPES registry on April 11, 2012.

Where is John Gross located?

John Gross practices at 401 North Broadway Weinberg 2251, Baltimore, MD 21231. The listed phone number is (410) 614-3653.

What is John Gross's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is John Gross enrolled in Medicare?

Yes. John Gross is registered in the Medicare PECOS enrollment system.

Is John Gross affiliated with any hospitals?

According to CMS data, John Gross is affiliated with Johns Hopkins Hospital, The, Suburban Hospital and Johns Hopkins Bayview Medical Center.

When was this NPI record last updated?

The NPPES record for John Gross was last updated on August 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.