Mariela Fuenmayor, M.D.
NPI 1356512578 · Psychiatry Physician · Gilroy, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mariela Fuenmayor, M.D. is a Psychiatry Physician provider in Gilroy, CA (NPI 1356512578).
Provider details
- NPI number
- 1356512578
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- E-13253 (AR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
111 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 100 | $216 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 11 | $222 |
Typical Medicare-allowed amounts for these services range $216–$222 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clozapine | 84 | — |
| Lamotrigine | 76 | 15 |
| Olanzapine | 44 | 15 |
| Trazodone Hcl | 42 | 18 |
| Paliperidone Palmitatebrand: Invega Sustenna | 36 | 13 |
| Mirtazapine | 32 | — |
| Benztropine Mesylate | 30 | 12 |
| Quetiapine Fumarate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$16 across 1 record (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)
- 7500 Rialto Blvd Ste 250Austin, TX 78735-8556Phone: (512) 221-1029Fax: (512) 467-2502
- 3215 Steck AveSuite 205Austin, TX 78757-7566Phone: (512) 467-2500Fax: (512) 467-2502
Registry dates
- Enumerated
- 2008-03-15
- Last updated
- 2020-06-15
- Certified
- 2020-06-15
Frequently asked questions
- What is Mariela Fuenmayor's NPI number?
- Mariela Fuenmayor's National Provider Identifier (NPI) is 1356512578, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mariela Fuenmayor's specialty?
- Mariela Fuenmayor is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Mariela Fuenmayor located?
- Mariela Fuenmayor's practice location on file with NPPES is 9015 Murray Ave Ste 100, Gilroy, CA 95020-3675.
- What is Mariela Fuenmayor's phone number?
- The practice phone number listed in the NPPES registry for Mariela Fuenmayor is (408) 842-7138.
- Does Mariela Fuenmayor accept Medicare?
- Mariela Fuenmayor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mariela Fuenmayor's NPI active?
- Yes — Mariela Fuenmayor's NPI (1356512578) is active in the NPPES registry as of the last update on 2020-06-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.