Maria Gillamac, MSN, NP-C
NPI 1598207110 · Family Nurse Practitioner · Westminster, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Gillamac, MSN, NP-C is a Family Nurse Practitioner provider in Westminster, CA (NPI 1598207110).
Provider details
- NPI number
- 1598207110
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN, NP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 95004875 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
597 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 180 | $84 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 164 | $117 |
| Urinalysis, Manual Test81002 | 48 | $3 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 43 | $13 |
| X-Ray of Chest, 2 Views71046 | 34 | $32 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 27 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 76 | 76 |
| Cephalexin | 69 | 67 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 55 | 55 |
| Mupirocin | 46 | 44 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 44 | 44 |
| Doxycycline Hyclate | 39 | 37 |
| Cyclobenzaprine Hcl | 23 | 23 |
Practice location
Mailing address
Additional practice locations (1)
- 3630 E Imperial HwyLynwood, CA 90262-2609Phone: (310) 900-8900
Registry dates
- Enumerated
- 2016-11-14
- Last updated
- 2020-05-07
- Certified
- 2020-05-07
Frequently asked questions
- What is Maria Gillamac's NPI number?
- Maria Gillamac's National Provider Identifier (NPI) is 1598207110, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Gillamac's specialty?
- Maria Gillamac is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Maria Gillamac located?
- Maria Gillamac's practice location on file with NPPES is 15464 Goldenwest St, Westminster, CA 92683-6149.
- What is Maria Gillamac's phone number?
- The practice phone number listed in the NPPES registry for Maria Gillamac is (714) 891-9008.
- Does Maria Gillamac accept Medicare?
- Maria Gillamac is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Gillamac's NPI active?
- Yes — Maria Gillamac's NPI (1598207110) is active in the NPPES registry as of the last update on 2020-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.