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DR. JAMES LEO GROFF D.O.
NPI 1598050155
Surgery - Trauma Surgery in Bridgehampton, NY

Active since June 12, 2011PECOS Enrolled
2454 MAIN STREET, BRIDGEHAMPTON, NY 11932(631) 919-5205 Get Directions Write a Review

NPPES record last updated: December 29, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 29, 2021, Oct 10, 2019 (2 updates tracked since 2019).

About Dr. James Leo Groff D.o. NPPES

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

DR. JAMES LEO GROFF D.O. (NPI 1598050155) is an individual trauma surgery provider in Bridgehampton, New York, licensed in New York (296108) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS, is affiliated with Suny/stony Brook University Hospital, and is a graduate of Lake Erie College Of Osteopathic Medicine, Erie (2011).

NPPES Registry Identity

NPI1598050155
Entity TypeIndividualMale
Primary Taxonomy2086S0127X
Provider Legal NameDR. JAMES LEO GROFFCredential: D.O.
Location Address2454 MAIN STREETBridgehampton, NY 11932
Mailing Address9 Shawnee StHampton Bays, NY 11946-1741 · (631) 538-8688
Phone(631) 919-5205
Sole ProprietorYes
Medical School CMSLake Erie College Of Osteopathic Medicine, ErieGraduated 2011
Enumeration DateJune 12, 2011
Last NPPES UpdateDecember 29, 20212 updates tracked since enumeration
NPPES CertifiedDecember 27, 2021
✔ NPI 1598050155 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgery · Trauma SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0127X
License✔ Licensed in NY · 296108
Definition
Trauma surgery is a recognized subspecialty of general surgery. Trauma surgeons are physicians who have completed a five-year general surgery residency and usually continue with a one to two year fellowship in trauma and/or surgical critical care, typically leading to additional board certification in surgical critical care. There is no trauma surgery board certification at this point. To obtain board certification in surgical critical care, a fellowship in surgical critical care or anesthesiology critical care must be completed during or after general surgery residency.
2454 MAIN STREET, Bridgehampton, NY 11932
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. James Leo Groff D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3779857214
PECOS Enrollment IDI20190503000438
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

3

Medicare enrollment records show James Groff reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

James Groff Medical P.C.
Same address
Trauma Surgery
2454 MAIN ST
Bridgehampton, NY 11932
  • Reassigned Medicare billing, New York enrollment
NPI 1235890815 (631) 919-5205
Tech Medical Office, PC
41 mi
Surgery
4 TECHNOLOGY DR, SUITE 220
East Setauket, NY 11733
  • Reassigned Medicare billing, New York enrollment
  • 5 clinicians in this Medicare group
NPI 1457649113 (631) 476-9296
Riverhead Surgery, PC
41 mi
Clinic/Center
4 TECHNOLOGY DRIVE, SUITE 220
East Setauket, NY 11733
  • Reassigned Medicare billing, New York enrollment
  • 2 clinicians in this Medicare group
NPI 1023574589 (631) 476-9296

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

Areas of Expertise CMS Part B claims 3

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.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
60 services59 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
56 services26 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
30 services30 patients

Hospital Affiliations CMS Care Compare

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

Suny/Stony Brook University Hospital

Acute Care Hospitals · Stony Brook, NY
4/5 CMS rating
OwnershipGovernment - State
CMS Certification Number330393
LocationHealth Sciences Center SunyStony Brook, NY 11794 · Suffolk County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 2

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

DR. ASMA ABDUL RASHID D.O.
Family Medicine
2454 MAIN STREET
BRIDGEHAMPTON, NY 11932
Suffolk County (631) 594-3238
ASMA RASHID MEDICAL P.C.
Family Medicine
2454 MAIN STREET
BRIDGE HAMPTON, NY 11932
Suffolk County (631) 594-3238

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 James Groff's NPI number?

The NPI number for James Groff is 1598050155. It was assigned to this individual provider in the NPPES registry on June 12, 2011.

Where is James Groff located?

James Groff practices at 2454 Main Street, Bridgehampton, NY 11932. The listed phone number is (631) 919-5205.

What is James Groff's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Trauma Surgery, with taxonomy code 2086S0127X.

Is James Groff enrolled in Medicare?

Yes. James Groff is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for James Groff's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Groff reassigns Medicare benefits to 3 organizations: James Groff Medical P.C. (Bridgehampton, NY), Tech Medical Office, PC (East Setauket, NY) and Riverhead Surgery, PC (East Setauket, NY). 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 James Groff's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is James Groff affiliated with any hospitals?

According to CMS data, James Groff is affiliated with Suny/Stony Brook University Hospital.

When was this NPI record last updated?

The NPPES record for James Groff was last updated on December 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.