Physician Profile
Unclaimed ProfileAbout GRANT
John Andrew Grant, M.D. is a healthcare provider in Rockville Centre, NY specialising in neurosurgery. John is also listed as specialising in neurological surgery and pediatric surgery.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What kind of doctor is Dr. Grant?
Dr. Grant is a neurosurgery in Rockville Centre, NY. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “NEUROSURGERY”.
NPI registry
What is Dr. Grant's address?
Dr. Grant is listed at 100 MERRICK ROAD SUITE 100W, Rockville Centre, NY 11570. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Grant?
The number on file is (516) 632-7050. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Grant's NPI number?
Dr. Grant's National Provider Identifier is 1093701278. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Grant train?
Dr. Grant attended Other, graduating in 1985. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Grant been practising?
Dr. Grant has 41 years experience. Calculated from a graduation year of 1985, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Grant perform?
According to Medicare billing data, Dr. Grant the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Grant confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Grant. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (516) 632-7050
- Email not available
Practice Locations
100 MERRICK ROAD SUITE 100W
Rockville Centre, NY 11570
Procedures Most Often Billed to Medicare
13 services · 13 patients · 1 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | Office visit | 99221 |
13 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other neurosurgery specialists at this location 6
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1985 at Other 8
Providers who graduated from the same medical school in the same year.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.