Rejan Mccaskill, M.D., F.A.C.P.
NPI 1790852606 · Internal Medicine Physician · Newport Beach, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rejan Mccaskill, M.D., F.A.C.P. is a Internal Medicine Physician provider in Newport Beach, CA (NPI 1790852606).
Provider details
- NPI number
- 1790852606
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., F.A.C.P.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A78084 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
667 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 262 | $137 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 133 | $98 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 97 | $140 |
| Administration of Influenza Virus VaccineG0008 | 56 | $29 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 50 | $21 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 30 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 65 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 212 | 56 |
| Rosuvastatin Calcium | 182 | 57 |
| Amlodipine Besylate | 180 | 52 |
| Atorvastatin Calcium | 175 | 51 |
| Losartan Potassium | 129 | 38 |
| Losartan/Hydrochlorothiazidebrand: Losartan-Hydrochlorothiazide | 90 | 27 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-29
- Last updated
- 2025-09-03
- Certified
- 2025-09-03
Frequently asked questions
- What is Rejan Mccaskill's NPI number?
- Rejan Mccaskill's National Provider Identifier (NPI) is 1790852606, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rejan Mccaskill's specialty?
- Rejan Mccaskill is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Rejan Mccaskill located?
- Rejan Mccaskill's practice location on file with NPPES is 320 Superior Ave Ste 330, Newport Beach, CA 92663-2772.
- What is Rejan Mccaskill's phone number?
- The practice phone number listed in the NPPES registry for Rejan Mccaskill is (949) 791-2000.
- Does Rejan Mccaskill accept Medicare?
- Rejan Mccaskill is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rejan Mccaskill's NPI active?
- Yes — Rejan Mccaskill's NPI (1790852606) is active in the NPPES registry as of the last update on 2025-09-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.