Dr. Jennifer Diane Armstrong, MD
- Part D claims, 2024
- 5,780
- Hospital affiliations
- 1
- Industry payments
- $322
- Medical group
- 1
- State license
- 1
- Practice address
- 25825 South Vermont Avenue, Harbor City, CA 90710
- Practice phone
- Call (310) 325-5111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Armstrong's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Jennifer Diane Armstrong is an internist in Harbor City, California
Dr. Armstrong practices at Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente.
Dr. Armstrong's NPI, 1578567178, was assigned on June 10, 2005. Dr. Armstrong graduated from University of Southern California Keck School of Medicine in 1999. Dr. Armstrong holds California license A74400.
- NPI
- 1578567178NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416844840
- NPI enumeration date
- June 10, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (310) 325-5111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jennifer Diane Armstrong practices at Kaiser Permanente South Bay Medical Center in Harbor City, California
Dr. Armstrong's primary practice is Kaiser Permanente South Bay Medical Center, at 25825 South Vermont Avenue, Harbor City, CA 90710 in Los Angeles County. The practice phone is (310) 325-5111.
- Kaiser Permanente South Bay Medical Center25825 South Vermont Avenue, Harbor City, CA 90710 · Los Angeles CountyPhone(310) 325-5111
Source: Dmand AI Affiliation Data
Dr. Jennifer Diane Armstrong is affiliated with 1 site of care and 1 medical group
Dr. Armstrong's primary practice is Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jennifer Diane Armstrong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Armstrong practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente South Bay Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jennifer Diane Armstrong is one of 16,751 internists in California
Internal medicine is Dr. Armstrong's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Armstrong is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Armstrong
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Jennifer Diane Armstrong's patients have a median age of 49
Across all payers, Dmand AI patient panel data puts Dr. Armstrong's median patient age at 49, with 73% women.
Dr. Armstrong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women73%
- Men27%
Source: Dmand AI Patient Panel Data
Dr. Jennifer Diane Armstrong wrote 5,780 Medicare Part D claims in 2024
In 2024, Dr. Armstrong wrote 5,780 Medicare Part D claims for 1,750 patients. 89% of them were for generic drugs. CMS names the drug for 5,151 of them, across 86 drugs with 11 or more claims each, at $193,584 in total drug cost. In 2023, CMS named 5,332 claims across 84 drugs.
Dr. Armstrong's Part D claims by kind of drug, 2024
- Generic5,165 claims89%
- Brand-name540 claims9%
- Other75 claims1%
Dr. Armstrong's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Armstrong's Part D claims, 2024
- Opioids4%248 of 5,780 claims
- Antibiotics1%45 of 5,780 claims
- Antipsychotics, patients 65 and over0%12 of 5,780 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 5,3322024: 5,1513%
Drugs named by CMS: 86 in 2024, 84 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Jennifer Diane Armstrong offers telehealth to Medicare patients
Dr. Armstrong accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Armstrong as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Jennifer Diane Armstrong received $322 in industry payments from 2017 to 2025
CMS Open Payments shows 16 general payments to Dr. Armstrong from 4 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Galderma Laboratories, L.P. paid the most, $186.
General payments to Dr. Armstrong by program year, 2017 to 2025
Companies that paid Dr. Armstrong the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jennifer Diane Armstrong graduated from University of Southern California Keck School of Medicine
Dr. Armstrong graduated from University of Southern California Keck School of Medicine in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jennifer Diane Armstrong's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Jennifer Diane Armstrong
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Jennifer Diane Armstrong's NPI number?
Dr. Jennifer Diane Armstrong's NPI number is 1578567178. It was assigned on June 10, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Jennifer Diane Armstrong?
Dr. Jennifer Diane Armstrong is an internist in Harbor City, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jennifer Diane Armstrong practice?
Dr. Armstrong practices at 25825 South Vermont Avenue, Harbor City, CA 90710. Dr. Armstrong's primary practice is Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente.
What is Dr. Jennifer Diane Armstrong's office phone number?
The practice phone on file for Dr. Armstrong is (310) 325-5111.
What is Dr. Jennifer Diane Armstrong's medical license number?
Dr. Armstrong holds California license A74400.
Which hospitals is Dr. Jennifer Diane Armstrong affiliated with?
Dr. Armstrong practices at Kaiser Permanente South Bay Medical Center in Harbor City, California.
What medical group is Dr. Jennifer Diane Armstrong part of?
Dr. Armstrong is linked to Southern California Permanente Medical Group.
Does Dr. Jennifer Diane Armstrong accept Medicare?
Yes. CMS lists Dr. Armstrong as accepting Medicare assignment.
Does Dr. Jennifer Diane Armstrong offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Armstrong as offering telehealth services.
Where did Dr. Jennifer Diane Armstrong go to medical school?
Dr. Armstrong graduated from University of Southern California Keck School of Medicine in 1999.
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What drugs does Dr. Jennifer Diane Armstrong prescribe most?
In 2024 Medicare Part D data, Dr. Armstrong's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.
Has Dr. Jennifer Diane Armstrong received payments from drug or device companies?
CMS Open Payments shows $322 in general payments to Dr. Armstrong from 4 companies from 2017 to 2025. The largest total came from Galderma Laboratories, L.P.
How long has Dr. Jennifer Diane Armstrong been practicing?
Dr. Armstrong graduated from medical school in 1999, 27 years ago.
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