DR. GREGORY B SULLIVAN MD
NPI 1154304897
Psychiatry & Neurology - Psychiatry in York, PA

Active since November 28, 2005PECOS EnrolledAccepts Medicare Assignment
1407 WILLIAMS RD, YORK, PA 17402(717) 851-6340 Get Directions Write a Review

NPPES record last updated: December 19, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 19, 2025, Mar 3, 2025, Dec 13, 2024 and 2 more (5 updates tracked since 2020).

About Dr. Gregory B Sullivan Md NPPES

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

DR. GREGORY B SULLIVAN MD (NPI 1154304897) is an individual psychiatry provider in York, Pennsylvania, licensed in Pennsylvania (MD037811E) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, maintains 5 additional practice locations, and is a graduate of George Washington University School Of Medicine (1985).

NPPES Registry Identity

NPI1154304897
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. GREGORY B SULLIVANCredential: MD
Location Address1407 WILLIAMS RDYork, PA 17402-9000
Mailing Address601 Memory LnYork, PA 17402-2231 · (717) 851-1405 · Fax (717) 851-6969
Sole ProprietorNo
Medical School CMSGeorge Washington University School Of MedicineGraduated 1985
Enumeration DateNovember 28, 2005
Last NPPES UpdateDecember 19, 20255 updates tracked since enumeration
NPPES CertifiedDecember 19, 2025
NPI 1154304897 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License Licensed in PA · MD037811E
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
1407 WILLIAMS RD, York, PA 17402

Secondary Practice Locations 5

Location 1150 Roosevelt AveYork, PA 17401-3380 · Phone (717) 356-5430
Location 2125 Schneider DrLebanon, PA 17046-4875 · Phone (717) 376-1020
Location 3315 W James StLancaster, PA 17603-2979 · Phone (717) 509-0625
Location 4112 N 7th StChambersburg, PA 17201-1720 · Phone (717) 267-7771 · Fax (717) 267-7427
Location 5176 S Coldbrook AveChambersburg, PA 17201-2712 · Phone (717) 267-7480 · Fax (717) 775-5015

Other Identifiers 1

Medicaid0011550090006PA

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. Gregory B Sullivan Md 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 ID3779485305
PECOS Enrollment IDI20040123000815
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 5

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.

Treatment using magnetic field to stimulate nerve cells in brain, subsequent delivery and management 90868
This treatment involves using a magnetic field to activate nerve cells in the brain. It's a non-invasive procedure designed to manage conditions like depression. The magnetic field is precisely targeted to stimulate specific areas of the brain to improve symptoms.
259 services14 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
77 services29 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
60 services19 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
21 services14 patients
Psychiatric diagnostic evaluation with medical services 90792
A psychiatric diagnostic evaluation with medical services is a comprehensive assessment. It includes a detailed examination of your mental health and physical wellbeing, as well as your personal and family history. This evaluation aids in creating an effective treatment plan.
13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 17402 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
$166.87 typical visit price
range $54.64 – $166.87
Typical copayment $41.71 (range $13.66 – $41.71)
Most-billed visit code 99205
Established Patient
$68.36 typical visit price
range $17.33 – $135.84
Typical copayment $17.09 (range $4.33 – $33.96)
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.

Psychologist (Clinical)
1407 WILLIAMS RD
YORK, PA 17402
Psychiatry & Neurology (Psychiatry)
1407 WILLIAMS RD
YORK, PA 17402
Behavior Analyst
1407 WILLIAMS RD
YORK, PA 17402
Social Worker (Clinical)
1407 WILLIAMS RD
YORK, PA 17402
Psychiatry & Neurology (Psychiatry)
1407 WILLIAMS RD
YORK, PA 17402
Social Worker (Clinical)
1407 WILLIAMS RD
YORK, PA 17402
Behavior Analyst
1407 WILLIAMS RD
YORK, PA 17402
Social Worker (Clinical)
1407 WILLIAMS RD
YORK, PA 17402

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 Gregory Sullivan's NPI number?

The NPI number for Gregory Sullivan is 1154304897. It was assigned to this individual provider in the NPPES registry on November 28, 2005.

Where is Gregory Sullivan located?

Gregory Sullivan practices at 1407 Williams Rd, York, PA 17402. The listed phone number is (717) 851-6340.

What is Gregory Sullivan's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Gregory Sullivan enrolled in Medicare?

Yes. Gregory Sullivan 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 Gregory Sullivan accept?

Health plans from Providence Health Plan list Gregory Sullivan 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.

When was this NPI record last updated?

The NPPES record for Gregory Sullivan was last updated on December 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.