Joannie Cathey Cook, MD
NPI 1780737981 · Internal Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joannie Cathey Cook, MD is a Internal Medicine Physician provider in Los Angeles, CA (NPI 1780737981).
Provider details
- NPI number
- 1780737981
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A33575 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Benazepril Hcl | 31 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 29 |
| Omeprazole | 25 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 23 |
| Naproxen | 19 |
| Pravastatin Sodium | 17 |
| Losartan Potassium | 13 |
| Tramadol Hcl | 12 |
| Atorvastatin Calcium | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-19
- Last updated
- 2014-12-04
Frequently asked questions
- What is Joannie Cathey Cook's NPI number?
- Joannie Cathey Cook's National Provider Identifier (NPI) is 1780737981, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joannie Cathey Cook's specialty?
- Joannie Cathey Cook is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joannie Cathey Cook located?
- Joannie Cathey Cook's practice location on file with NPPES is 231 W Vernon Ave, Los Angeles, CA 90037-2700.
- What is Joannie Cathey Cook's phone number?
- The practice phone number listed in the NPPES registry for Joannie Cathey Cook is (310) 724-7448.
- Does Joannie Cathey Cook accept Medicare?
- Joannie Cathey Cook is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joannie Cathey Cook's NPI active?
- Yes — Joannie Cathey Cook's NPI (1780737981) is active in the NPPES registry as of the last update on 2014-12-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.