1. Home
  2. Directory
  3. New York
  4. Stony Brook
  5. Psychiatry Neurology
  6. NPI Profile

GEOFFREY MCMILLAN RUSSELL MD
NPI 1487281044
Psychiatry & Neurology - Psychiatry in Stony Brook, NY

Active since March 24, 2020PECOS EnrolledAccepts Medicare Assignment
101 NICOLLS RD RM 175, STONY BROOK, NY 11794(631) 444-3005(631) 444-7534 Get Directions Write a Review

NPPES record last updated: June 27, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 27, 2024, Mar 24, 2020 (2 updates tracked since 2020).

About Geoffrey Mcmillan Russell Md NPPES

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

GEOFFREY MCMILLAN RUSSELL MD (NPI 1487281044) is an individual psychiatry provider in Stony Brook, New York, licensed in New York (327152) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Suny/stony Brook University Hospital, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1487281044
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameGEOFFREY MCMILLAN RUSSELLCredential: MD
Location Address101 NICOLLS RD RM 175Stony Brook, NY 11794-8430
Mailing Address101 Nicolls Rd Rm 175Stony Brook, NY 11794-8430 · (631) 444-3005 · Fax (631) 444-7534
Phone(631) 444-3005
Fax(631) 444-7534
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateMarch 24, 2020
Last NPPES UpdateJune 27, 20242 updates tracked since enumeration
NPPES CertifiedJune 27, 2024
✔ NPI 1487281044 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in NY · 327152
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
101 NICOLLS RD RM 175, Stony Brook, NY 11794
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Geoffrey Mcmillan Russell 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 ID2163862293
PECOS Enrollment IDI20240506003787
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 Reassignment

Medicare enrollment records show Geoffrey Russell reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Stony Brook Psychiatric Associates, University Faculty Practice Corpor
0.5 mi
Psychiatry
SUNY @ STONY BROOK, HSC, L10, RM 020
Stony Brook, NY 11794
  • Reassigned Medicare billing, New York enrollment
  • 133 clinicians in this Medicare group
NPI 1437105905 (631) 444-8125

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 4

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.

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.
115 services112 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
61 services40 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.
42 services39 patients
Psychiatric services complicated by communication factor 90785
Psychiatric services complicated by communication factors involve mental health care for individuals who have challenges with communication. This can include language barriers, speech disorders, or cognitive impairments. The process involves tailored strategies to ensure effective communication and appropriate mental health care.
19 services19 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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11794 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
$203.53 typical visit price
range $67.40 – $203.53
Typical copayment $50.88 (range $16.85 – $50.88)
Most-billed visit code 99205
Established Patient
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
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 2

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

JOHN CHURCH M.D.
Student in an Organized Health Care Education/Training Program
101 NICOLLS RD RM 175, HSC T16, ROOM 020
STONY BROOK, NY 11794
Suffolk County (631) 444-7411
SHIVAM PATEL DO
Student in an Organized Health Care Education/Training Program
101 NICOLLS RD RM 175
STONY BROOK, NY 11794
Suffolk County (631) 444-2065

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 Geoffrey Russell's NPI number?

The NPI number for Geoffrey Russell is 1487281044. It was assigned to this individual provider in the NPPES registry on March 24, 2020.

Where is Geoffrey Russell located?

Geoffrey Russell practices at 101 Nicolls Rd Rm 175, Stony Brook, NY 11794. The listed phone number is (631) 444-3005.

What is Geoffrey Russell's specialty?

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

Is Geoffrey Russell enrolled in Medicare?

Yes. Geoffrey Russell 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.

Which organization bills Medicare for Geoffrey Russell's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Geoffrey Russell reassigns Medicare benefits to Stony Brook Psychiatric Associates, University Faculty Practice Corpor (Stony Brook, NY). The 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 Geoffrey Russell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Geoffrey Russell affiliated with any hospitals?

According to CMS data, Geoffrey Russell is affiliated with Suny/Stony Brook University Hospital.

When was this NPI record last updated?

The NPPES record for Geoffrey Russell was last updated on June 27, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.