Roxanne Stallworth, M.D., M.P.H.
NPI 1366678906 · Internal Medicine Physician · Costa Mesa, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Roxanne Stallworth, M.D., M.P.H. is a Internal Medicine Physician provider in Costa Mesa, CA (NPI 1366678906).
Provider details
- NPI number
- 1366678906
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., M.P.H.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A113706 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 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
69 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 | 41 | $138 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 14 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 14 | $139 |
Typical Medicare-allowed amounts for these services range $9–$139 (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 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 93 | 41 |
| Amlodipine Besylate | 59 | 27 |
| Losartan Potassium | 56 | 28 |
| Levothyroxine Sodium | 55 | 25 |
| Rosuvastatin Calcium | 31 | 19 |
| Lisinopril | 30 | 11 |
| Alendronate Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$115 across 4 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)
- 777 Corporate Dr Ste 140Ladera Ranch, CA 92694-2136Phone: (949) 409-4868
Registry dates
- Enumerated
- 2009-06-10
- Last updated
- 2025-08-13
- Certified
- 2025-08-13
Frequently asked questions
- What is Roxanne Stallworth's NPI number?
- Roxanne Stallworth's National Provider Identifier (NPI) is 1366678906, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Roxanne Stallworth's specialty?
- Roxanne Stallworth is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Roxanne Stallworth located?
- Roxanne Stallworth's practice location on file with NPPES is 1640 Newport Blvd Ste 440, Costa Mesa, CA 92627-3786.
- What is Roxanne Stallworth's phone number?
- The practice phone number listed in the NPPES registry for Roxanne Stallworth is (949) 791-8888.
- Does Roxanne Stallworth accept Medicare?
- Roxanne Stallworth is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Roxanne Stallworth's NPI active?
- Yes — Roxanne Stallworth's NPI (1366678906) is active in the NPPES registry as of the last update on 2025-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.