Sandra Sullivan, NP
NPI 1639487952 · Nurse Practitioner · Encinitas, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sandra Sullivan, NP is a Nurse Practitioner provider in Encinitas, CA (NPI 1639487952).
Provider details
- NPI number
- 1639487952
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- NP19940 (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
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
41 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 29 | $103 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 12 | $68 |
Typical Medicare-allowed amounts for these services range $68–$103 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 55 | 43 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 37 | 33 |
| Gabapentin | 31 | 18 |
| Morphine Sulfatebrand: Morphine Sulfate Er | 30 | 25 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 26 | 22 |
| Pregabalin | 17 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$50 across 3 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
Registry dates
- Enumerated
- 2010-09-21
- Last updated
- 2016-01-18
Frequently asked questions
- What is Sandra Sullivan's NPI number?
- Sandra Sullivan's National Provider Identifier (NPI) is 1639487952, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sandra Sullivan's specialty?
- Sandra Sullivan is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sandra Sullivan located?
- Sandra Sullivan's practice location on file with NPPES is 320 Santa Fe Dr, Encinitas, CA 92024-5138.
- What is Sandra Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Sandra Sullivan is (760) 230-5188.
- Does Sandra Sullivan accept Medicare?
- Sandra Sullivan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sandra Sullivan's NPI active?
- Yes — Sandra Sullivan's NPI (1639487952) is active in the NPPES registry as of the last update on 2016-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.