Daniel Kostalnick, M.D.
NPI 1821007295 · Psychiatry Physician · Pleasanton, CA
Daniel Kostalnick, M.D. is a Psychiatry Physician provider in Pleasanton, CA (NPI 1821007295).
Provider details
- NPI number
- 1821007295
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A77386 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Duloxetine Hcl | 165 | 30 |
| Bupropion Hclbrand: Bupropion Xl | 163 | 27 |
| Alprazolam | 71 | 13 |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 71 | — |
| Lorazepam | 67 | 12 |
| Sertraline Hcl | 67 | 16 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-05
- Last updated
- 2016-06-08
Frequently asked questions
- What is Daniel Kostalnick's NPI number?
- Daniel Kostalnick's National Provider Identifier (NPI) is 1821007295, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Kostalnick's specialty?
- Daniel Kostalnick is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Kostalnick located?
- Daniel Kostalnick's practice location on file with NPPES is 2324 Santa Rita Rd, Pleasanton, CA 94566-4152.
- What is Daniel Kostalnick's phone number?
- The practice phone number listed in the NPPES registry for Daniel Kostalnick is (925) 784-4000.
- Is Daniel Kostalnick's NPI active?
- Yes — Daniel Kostalnick's NPI (1821007295) is active in the NPPES registry as of the last update on 2016-06-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.