Jennifer Armstrong, MD
NPI 1578567178 · Internal Medicine Physician · Harbor City, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Armstrong, MD is a Internal Medicine Physician provider in Harbor City, CA (NPI 1578567178).
Provider details
- NPI number
- 1578567178
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A74400 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
21 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 87 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 533 | 330 |
| Amlodipine Besylate | 409 | 236 |
| Losartan Potassium | 258 | 152 |
| Lisinopril | 216 | 131 |
| Levothyroxine Sodium | 195 | 120 |
| Rosuvastatin Calcium | 182 | 107 |
| Albuterol Sulfate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-10
- Last updated
- 2021-12-02
Frequently asked questions
- What is Jennifer Armstrong's NPI number?
- Jennifer Armstrong's National Provider Identifier (NPI) is 1578567178, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Armstrong's specialty?
- Jennifer Armstrong is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jennifer Armstrong located?
- Jennifer Armstrong's practice location on file with NPPES is 25825 Vermont Ave, Harbor City, CA 90710-3518.
- What is Jennifer Armstrong's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Armstrong is (310) 257-6382.
- Does Jennifer Armstrong accept Medicare?
- Jennifer Armstrong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Armstrong's NPI active?
- Yes — Jennifer Armstrong's NPI (1578567178) is active in the NPPES registry as of the last update on 2021-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.