Marianne Plakas, FNP
NPI 1942503701 · Family Nurse Practitioner · Sylmar, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marianne Plakas, FNP is a Family Nurse Practitioner provider in Sylmar, CA (NPI 1942503701).
Provider details
- NPI number
- 1942503701
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 20420 (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
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
56 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 25 | $97 |
| Residence Visit for Established Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99350 | 16 | $164 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 15 | $137 |
Typical Medicare-allowed amounts for these services range $97–$164 (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 · 124 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 314 | 85 |
| Amlodipine Besylate | 171 | 40 |
| Pantoprazole Sodium | 149 | 42 |
| Lisinopril | 143 | 40 |
| Gabapentin | 138 | 33 |
| Fluticasone Propionate | 118 | 42 |
| Lorazepam | 110 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-12-16
- Last updated
- 2010-12-16
Frequently asked questions
- What is Marianne Plakas's NPI number?
- Marianne Plakas's National Provider Identifier (NPI) is 1942503701, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marianne Plakas's specialty?
- Marianne Plakas is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marianne Plakas located?
- Marianne Plakas's practice location on file with NPPES is 14124 Foothill Blvd Ste 100, Sylmar, CA 91342-8051.
- What is Marianne Plakas's phone number?
- The practice phone number listed in the NPPES registry for Marianne Plakas is (818) 367-1012.
- Does Marianne Plakas accept Medicare?
- Marianne Plakas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marianne Plakas's NPI active?
- Yes — Marianne Plakas's NPI (1942503701) is active in the NPPES registry as of the last update on 2010-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.