Physician Profile
Unclaimed ProfileAbout GRATTAN
Listed in the NPI registry as a clinical psychologist, Gil J Grattan, PsyD practises in Pasadena, CA. Gil is also listed as specialising in psychologist — clinical.
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. Grattan?
Dr. Grattan is a clinical psychologist in Pasadena, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CLINICAL PSYCHOLOGIST”.
NPI registry
What is Dr. Grattan's address?
Dr. Grattan is listed at 446 S MARENGO AVE SUITE A, Pasadena, CA 91101. 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. Grattan?
The number on file is (818) 317-8866. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Grattan's NPI number?
Dr. Grattan's National Provider Identifier is 1578996872. 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. Grattan train?
Dr. Grattan attended Other, graduating in 2006. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Grattan been practising?
Dr. Grattan has 20 years experience. Calculated from a graduation year of 2006, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Grattan perform?
According to Medicare billing data, Dr. Grattan provides treatments such as psychotherapy, 45 minutes and psychiatric diagnostic evaluation. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Grattan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Grattan. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (818) 317-8866
- Email not available
Practice Locations
446 S MARENGO AVE SUITE A
Pasadena, CA 91101
Procedures Most Often Billed to Medicare
2,308 services · 461 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Psychotherapy, 45 minutes | Treatment | 90834 |
1,477 |
| Psychotherapy, 45 minutes | Treatment | 90834 |
621 |
| Psychiatric diagnostic evaluation | Treatment | 90791 |
210 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
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.
Other clinical psychologists in Pasadena 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2006 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Psychotherapy, 45 minutes 8
Providers in CA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.