Marilynn Shaw, MS, APRN, NP, CNS
NPI 1114400967 · Nurse Practitioner · Oceanside, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marilynn Shaw, MS, APRN, NP, CNS is a Nurse Practitioner provider in Oceanside, CA (NPI 1114400967).
Provider details
- NPI number
- 1114400967
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MS, APRN, NP, CNS
- Sex
- Female
- Sole proprietor
- No
- License
- 95009825 (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 tenure25% of score
7 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
27 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 27 | $116 |
Typical Medicare-allowed amounts for these services range $116–$116 (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 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Carvedilol | 183 | 66 |
| Spironolactone | 163 | 73 |
| Metoprolol Succinate | 137 | 56 |
| Amlodipine Besylate | 127 | 59 |
| Empagliflozinbrand: Jardiance | 120 | 41 |
| Furosemide | 108 | 57 |
| Valsartan | 103 | 45 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,131 across 76 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 (1)
- 3131 Berger Ave Ste 200San Diego, CA 92123-4203Phone: (858) 244-6800Fax: (858) 244-6800
Registry dates
- Enumerated
- 2018-09-07
- Last updated
- 2025-12-18
- Certified
- 2025-12-18
Frequently asked questions
- What is Marilynn Shaw's NPI number?
- Marilynn Shaw's National Provider Identifier (NPI) is 1114400967, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marilynn Shaw's specialty?
- Marilynn Shaw is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marilynn Shaw located?
- Marilynn Shaw's practice location on file with NPPES is 3927 Waring Rd Ste C, Oceanside, CA 92056-4458.
- What is Marilynn Shaw's phone number?
- The practice phone number listed in the NPPES registry for Marilynn Shaw is (619) 703-7220.
- Does Marilynn Shaw accept Medicare?
- Marilynn Shaw is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marilynn Shaw's NPI active?
- Yes — Marilynn Shaw's NPI (1114400967) is active in the NPPES registry as of the last update on 2025-12-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.