Jack Liang, M.D.
NPI 1184944639 · Family Medicine Physician · Victorville, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jack Liang, M.D. is a Family Medicine Physician provider in Victorville, CA (NPI 1184944639).
Provider details
- NPI number
- 1184944639
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A112255 (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
16 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 · 98 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 444 | 230 |
| Lisinopril | 233 | 128 |
| Amlodipine Besylate | 186 | 121 |
| Losartan Potassium | 118 | 73 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 114 | 28 |
| Metformin Hcl | 112 | 61 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-06-07
- Last updated
- 2026-03-27
- Certified
- 2026-03-27
Frequently asked questions
- What is Jack Liang's NPI number?
- Jack Liang's National Provider Identifier (NPI) is 1184944639, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Liang's specialty?
- Jack Liang is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jack Liang located?
- Jack Liang's practice location on file with NPPES is 14011 Park Ave, Victorville, CA 92392-2413.
- What is Jack Liang's phone number?
- The practice phone number listed in the NPPES registry for Jack Liang is (888) 750-0036.
- Does Jack Liang accept Medicare?
- Jack Liang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jack Liang's NPI active?
- Yes — Jack Liang's NPI (1184944639) is active in the NPPES registry as of the last update on 2026-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.