Tarlan Dewing, M.D.
NPI 1942408323 · Family Medicine Physician · Costa Mesa, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tarlan Dewing, M.D. is a Family Medicine Physician provider in Costa Mesa, CA (NPI 1942408323).
Provider details
- NPI number
- 1942408323
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A105837 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 104 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 421 | 146 |
| Losartan Potassium | 252 | 89 |
| Levothyroxine Sodium | 240 | 74 |
| Amlodipine Besylate | 203 | 73 |
| Rosuvastatin Calcium | 198 | 67 |
| Lisinopril | 166 | 55 |
| Hydrocodone/Acetaminophen |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-07-06
- Last updated
- 2021-12-27
- Certified
- 2021-12-27
Frequently asked questions
- What is Tarlan Dewing's NPI number?
- Tarlan Dewing's National Provider Identifier (NPI) is 1942408323, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tarlan Dewing's specialty?
- Tarlan Dewing is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tarlan Dewing located?
- Tarlan Dewing's practice location on file with NPPES is 1190 Baker St Ste 100, Costa Mesa, CA 92626-4105.
- What is Tarlan Dewing's phone number?
- The practice phone number listed in the NPPES registry for Tarlan Dewing is (714) 668-2500.
- Does Tarlan Dewing accept Medicare?
- Tarlan Dewing is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tarlan Dewing's NPI active?
- Yes — Tarlan Dewing's NPI (1942408323) is active in the NPPES registry as of the last update on 2021-12-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.