Tiffany Ko, M.D.
NPI 1134351836 · Family Medicine Physician · Lancaster, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tiffany Ko, M.D. is a Family Medicine Physician provider in Lancaster, CA (NPI 1134351836).
Provider details
- NPI number
- 1134351836
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
83% 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 · 94 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 356 | 125 |
| Rosuvastatin Calcium | 312 | 117 |
| Losartan Potassium | 213 | 74 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 204 | 47 |
| Levothyroxine Sodium | 184 | 59 |
| Amlodipine Besylate | 178 | 71 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-08-13
- Last updated
- 2021-12-06
Frequently asked questions
- What is Tiffany Ko's NPI number?
- Tiffany Ko's National Provider Identifier (NPI) is 1134351836, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tiffany Ko's specialty?
- Tiffany Ko is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tiffany Ko located?
- Tiffany Ko's practice location on file with NPPES is 43112 15th St W, Lancaster, CA 93534-6219.
- What is Tiffany Ko's phone number?
- The practice phone number listed in the NPPES registry for Tiffany Ko is (877) 554-4404.
- Does Tiffany Ko accept Medicare?
- Tiffany Ko is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tiffany Ko's NPI active?
- Yes — Tiffany Ko's NPI (1134351836) is active in the NPPES registry as of the last update on 2021-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.