Dr. David E. Longstroth, MD
- Part D claims, 2024
- 137
- Hospital affiliations
- 1
- Industry payments
- $74
- Medical group
- 1
- Insurance carriers
- 2
- Practice address
- 2500 Alhambra Avenue, Martinez, CA 94553
- Practice phone
- Call (925) 370-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Longstroth'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. David E. Longstroth is a family medicine physician in Martinez, California
Dr. Longstroth practices at Contra Costa Regional Medical Center in Martinez, California, part of State of California.
Dr. Longstroth's NPI, 1033497367, was assigned on August 3, 2011. Dr. Longstroth graduated from The Robert Larner, M.D. College of Medicine in 2010. Dr. Longstroth's California license number on file is A117824.
- NPI
- 1033497367NPI Registry (opens in a new tab)
- NPI enumeration date
- August 3, 2011
- NPI status
- Active
- Practice phone
- (925) 370-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. David E. Longstroth practices at Contra Costa Regional Medical Center in Martinez, California
Dr. Longstroth's primary practice is Contra Costa Regional Medical Center, at 2500 Alhambra Avenue, Martinez, CA 94553 in Contra Costa County. The practice phone is (925) 370-5000.
- Contra Costa Regional Medical Center2500 Alhambra Avenue, Martinez, CA 94553 · Contra Costa CountyPhone(925) 370-5000
Source: Dmand AI Affiliation Data
Dr. David E. Longstroth is affiliated with 1 site of care and 1 medical group
Dr. Longstroth's primary practice is Contra Costa Regional Medical Center in Martinez, California, part of State of California. The medical group on file is West County Adult Mental Health Services. Dr. Longstroth's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David E. Longstroth's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Longstroth practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Contra Costa Regional Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David E. Longstroth is one of 15,680 family medicine physicians in California
Family medicine is Dr. Longstroth's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Longstroth is board certified in family medicine by the American Board of Family Medicine. Dr. Longstroth has a license on file in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists congestive heart failure, heart attack, pneumonia and respiratory infection, pulmonary embolism and sepsis among the conditions Dr. Longstroth treats.
Family medicine physicians near Dr. Longstroth
Counts of family medicine physicians 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. David E. Longstroth's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Longstroth's median patient age at 66, with 47% women.
Dr. Longstroth's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women47%
- Men51%
Source: Dmand AI Patient Panel Data
Dr. David E. Longstroth wrote 137 Medicare Part D claims in 2024
In 2024, Dr. Longstroth wrote 137 Medicare Part D claims for 30 patients. 78% of them were for generic drugs. CMS names the drug for 30 of them, across 2 drugs with 11 or more claims each, at $324 in total drug cost. In 2022, CMS named 13 claims across 1 drug.
Dr. Longstroth's Part D claims by kind of drug, 2024
- Generic107 claims78%
- Brand-name and other30 claims22%
Dr. Longstroth's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 132023: 30131%
Drugs named by CMS: 2 in 2023, 1 in 2022.
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
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Dr. David E. Longstroth received $74 in industry payments in 2020
CMS Open Payments shows 2 general payments to Dr. Longstroth from 2 drug and device companies in 2020. Food and beverage make up the largest share, 100% of the total. KCI USA, Inc. paid the most, $62.
Companies that paid Dr. Longstroth the most, 2020 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David E. Longstroth graduated from The Robert Larner, M.D. College of Medicine
Dr. Longstroth graduated from The Robert Larner, M.D. College of Medicine in 2010.
- Medical school
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
Dr. David E. Longstroth accepts plans from 2 insurance carriers
Dr. Longstroth is in network with 2 carriers, including Blue Cross Blue Shield of Michigan and Elevance. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Elevance
Plan types Dr. Longstroth accepts, by number of carriers
- HMO2
- PPO2
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. David E. Longstroth'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. David E. Longstroth
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. David E. Longstroth's NPI number?
Dr. David E. Longstroth's NPI number is 1033497367. It was assigned on August 3, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. David E. Longstroth?
Dr. David E. Longstroth is a family medicine physician in Martinez, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. David E. Longstroth practice?
Dr. Longstroth practices at 2500 Alhambra Avenue, Martinez, CA 94553. Dr. Longstroth's primary practice is Contra Costa Regional Medical Center in Martinez, California, part of State of California.
What is Dr. David E. Longstroth's office phone number?
The practice phone on file for Dr. Longstroth is (925) 370-5000.
What is Dr. David E. Longstroth's medical license number?
Dr. Longstroth's California license number on file is A117824.
Which hospitals is Dr. David E. Longstroth affiliated with?
Dr. Longstroth practices at Contra Costa Regional Medical Center in Martinez, California.
What medical group is Dr. David E. Longstroth part of?
Dr. Longstroth is linked to West County Adult Mental Health Services.
Is Dr. David E. Longstroth board certified?
Yes. Dr. Longstroth is board certified in family medicine by the American Board of Family Medicine.
Where did Dr. David E. Longstroth go to medical school?
Dr. Longstroth graduated from The Robert Larner, M.D. College of Medicine in 2010.
What drugs does Dr. David E. Longstroth prescribe most?
In 2023 Medicare Part D data, Dr. Longstroth's most prescribed drugs by claims were Atorvastatin Calcium and Fluoxetine HCl.
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Has Dr. David E. Longstroth received payments from drug or device companies?
CMS Open Payments shows $74 in general payments to Dr. Longstroth from 2 companies from 2020 to 2020. The largest total came from KCI USA, Inc.
How long has Dr. David E. Longstroth been practicing?
Dr. Longstroth graduated from medical school in 2010, 16 years ago.
What insurance does Dr. David E. Longstroth accept?
Dr. Longstroth is in network with 2 carriers, including Blue Cross Blue Shield of Michigan and Elevance. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
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