Jennifer Li, MD
NPI 1457844839 · Geriatric Medicine (Internal Medicine) Physician · Pasadena, CA
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Li, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Pasadena, CA (NPI 1457844839).
Provider details
- NPI number
- 1457844839
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A173883 (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
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 81 | 48 |
| Amlodipine Besylate | 47 | 28 |
| Metoprolol Tartrate | 40 | 22 |
| Furosemide | 39 | 23 |
| Mirtazapine | 39 | 25 |
| Gabapentin | 36 | 26 |
| Allopurinol | 32 | 16 |
Practice location
Mailing address
Additional practice locations (1)
- 4309 W Medical Center DrMchenry, IL 60050-8419Phone: (815) 759-4726
Registry dates
- Enumerated
- 2018-06-11
- Last updated
- 2023-01-13
- Certified
- 2022-07-15
Frequently asked questions
- What is Jennifer Li's NPI number?
- Jennifer Li's National Provider Identifier (NPI) is 1457844839, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Li's specialty?
- Jennifer Li is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Jennifer Li located?
- Jennifer Li's practice location on file with NPPES is 393 E Walnut St, Pasadena, CA 91188-8419.
- What is Jennifer Li's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Li is (877) 608-0044.
- Does Jennifer Li accept Medicare?
- Jennifer Li is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Li's NPI active?
- Yes — Jennifer Li's NPI (1457844839) is active in the NPPES registry as of the last update on 2023-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.