Sylvia Heiser, MSN, RN, FNP-C
NPI 1508395229 · Family Nurse Practitioner · El Monte, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sylvia Heiser, MSN, RN, FNP-C is a Family Nurse Practitioner provider in El Monte, CA (NPI 1508395229).
Provider details
- NPI number
- 1508395229
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN, RN, FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 95005700 (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 tenure38% of score
9 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 · 66 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 155 | 29 |
| Amlodipine Besylate | 115 | 20 |
| Olanzapine | 87 | 15 |
| Quetiapine Fumarate | 86 | 17 |
| Donepezil Hcl | 86 | 12 |
| Levothyroxine Sodium | 81 | 17 |
| Mirtazapine | 68 | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-06-06
- Last updated
- 2017-06-06
Frequently asked questions
- What is Sylvia Heiser's NPI number?
- Sylvia Heiser's National Provider Identifier (NPI) is 1508395229, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sylvia Heiser's specialty?
- Sylvia Heiser is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sylvia Heiser located?
- Sylvia Heiser's practice location on file with NPPES is 3580 Santa Anita Ave Ste a, El Monte, CA 91731-2455.
- What is Sylvia Heiser's phone number?
- The practice phone number listed in the NPPES registry for Sylvia Heiser is (626) 444-2660.
- Does Sylvia Heiser accept Medicare?
- Sylvia Heiser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sylvia Heiser's NPI active?
- Yes — Sylvia Heiser's NPI (1508395229) is active in the NPPES registry as of the last update on 2017-06-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.