Tammy Devincentis, FNP
NPI 1609022359 · Psychiatric/Mental Health Nurse Practitioner · San Jose, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammy Devincentis, FNP is a Psychiatric/Mental Health Nurse Practitioner provider in San Jose, CA (NPI 1609022359).
Provider details
- NPI number
- 1609022359
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 17593 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
17 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- 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 · 3 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Escitalopram Oxalate | 15 |
| Gabapentin | 12 |
| Quetiapine Fumarate | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$258 across 2 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
Additional practice locations (2)
- 55 E Julian StSan Jose, CA 95112-4007Phone: (408) 918-2600Fax: (408) 795-1129
- 160 E Virginia St Ste 280San Jose, CA 95112-5817Phone: (408) 287-6200
Registry dates
- Enumerated
- 2008-08-13
- Last updated
- 2025-07-18
- Certified
- 2025-07-18
Frequently asked questions
- What is Tammy Devincentis's NPI number?
- Tammy Devincentis's National Provider Identifier (NPI) is 1609022359, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Devincentis's specialty?
- Tammy Devincentis is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Tammy Devincentis located?
- Tammy Devincentis's practice location on file with NPPES is 4850 Union Ave, San Jose, CA 95124-5156.
- What is Tammy Devincentis's phone number?
- The practice phone number listed in the NPPES registry for Tammy Devincentis is (800) 913-2615.
- Does Tammy Devincentis accept Medicare?
- Tammy Devincentis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammy Devincentis's NPI active?
- Yes — Tammy Devincentis's NPI (1609022359) is active in the NPPES registry as of the last update on 2025-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.