William Sastry, M.D.
NPI 1699845859 · Psychiatry Physician · Palo Alto, CA
William Sastry, M.D. is a Psychiatry Physician provider in Palo Alto, CA (NPI 1699845859).
Provider details
- NPI number
- 1699845859
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A89301 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Escitalopram Oxalate | 45 |
| Gabapentin | 32 |
| Clozapine | 24 |
| Diazepam | 23 |
| Bupropion Hclbrand: Bupropion Xl | 18 |
| Lamotrigine | 15 |
| Lorazepam | 14 |
| Trazodone Hcl | 14 |
| Buspirone Hcl | 13 |
| Aripiprazole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$349 across 11 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-08
- Last updated
- 2014-07-17
Frequently asked questions
- What is William Sastry's NPI number?
- William Sastry's National Provider Identifier (NPI) is 1699845859, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Sastry's specialty?
- William Sastry is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is William Sastry located?
- William Sastry's practice location on file with NPPES is 2425 Park Blvd, Palo Alto, CA 94306-1931.
- What is William Sastry's phone number?
- The practice phone number listed in the NPPES registry for William Sastry is (650) 814-9064.
- Is William Sastry's NPI active?
- Yes — William Sastry's NPI (1699845859) is active in the NPPES registry as of the last update on 2014-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.