Family PracticeInternship and Residency
Dr. John Testerman, MD
NPI1629003868
- Medicare services, 2016
- 616
- Part D claims, 2017
- 339
- Publications
- 5
- Industry payments
- $21
- Affiliated sites
- 2
- Practice address
- 11234 Anderson St, Loma Linda, CA 92354
- Practice phone
- Call (909) 558-5075
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Loma Linda University Medical Center
Loma Linda, California
Find Dr. Testerman's professional email, personal email and mobile number
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Dr. John Testerman is a family medicine physician in Loma Linda, California
Dr. Testerman practices at Loma Linda University Medical Center in Loma Linda, California.
Dr. Testerman's NPI, 1629003868, was assigned on July 12, 2006. Dr. Testerman graduated from Loma Linda University School Of Medicine in 1980. Dr. Testerman's California license number on file is G72014.
NPI and contact details
- NPI
- 1629003868NPI Registry (opens in a new tab)
- NPI enumeration date
- July 12, 2006
- NPI status
- Active
- Practice phone
- (909) 558-5075
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. John Testerman practices at Loma Linda University Medical Center in Loma Linda, California
Dr. Testerman's primary practice is Loma Linda University Medical Center, at 11234 Anderson St, Loma Linda, CA 92354 in San Bernardino County. The practice phone is (909) 558-5075.
- Loma Linda University Medical Center11234 Anderson St, Loma Linda, CA 92354 · San Bernardino CountyPhone(909) 558-5075
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Testerman is affiliated with 3 sites of care and 2 medical groups
Dr. Testerman's primary practice is Loma Linda University Medical Center in Loma Linda, California. The medical group on file is Loma Linda University Faculty Medical Group (LLUFMG). Dmand AI also links Dr. Testerman to 2 more group practices and clinics and 1 medical group, each named with a free account.
Loma Linda University Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John Testerman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Testerman practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Loma Linda University Medical Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Testerman is one of 15,680 family medicine physicians in California
Family medicine is Dr. Testerman's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Testerman has a license on file in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Family medicine physicians near Dr. Testerman
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. John Testerman billed Medicare for 616 services in 2016
CMS data shows 616 Medicare services from Dr. Testerman across 10 procedure codes in 2016. Medicare paid $38,367 for them. Every service was in an office.
Medicare services, 2016616
Paid by Medicare$38,367
Procedure codes10
Dr. Testerman's Medicare services by type, 2016
- Office and hospital visits379
- Lab and pathology92
- Other services92
- Tests and treatments53
Dr. Testerman compared with the California median for family medicine physicians, 2016
- Dr. Testerman
- California median
- Medicare services
- 616vs 2462.5 times
- Part D claims
- 339vs 83359% below
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Testerman's most billed Medicare procedure codes, 2016
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Testerman and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Testerman's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Testerman's median patient age at 70, with 50% women.
Dr. Testerman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. John Testerman wrote 339 Medicare Part D claims in 2017
In 2017, Dr. Testerman wrote 339 Medicare Part D claims. Every claim was for a generic drug. They cover 15 drugs, with $5,193 in total drug cost. In 2016, CMS named 2,391 claims across 73 drugs.
Part D claims, 2017339
Drugs named by CMS15
Total drug cost$5,193
Dr. Testerman's most prescribed drugs by claims, 2017
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, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 2,3912017: 33986%
Drugs named by CMS: 15 in 2017, 73 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. John Testerman has 5 publications on record
Dmand AI links 5 papers to Dr. Testerman. The most frequent topics are Internship and Residency and Students, Medical. Dr. Testerman has published most often in Acad Med. Dr. Testerman's most frequent co-authors are Lawrence Loo, MD and Wayne Stephen Dysinger, MD.
Papers5
Topics Dr. Testerman writes about most
- Internship and Residency
- Students, Medical
Dr. Testerman's most frequent co-authors
Recent publications by Dr. Testerman
Drug PrescriptionsEthics, NursingEuthanasia
Education, Medical, GraduateEthics, MedicalLogic
Analysis of VarianceAttitude of Health PersonnelEmotions
See who Dr. Testerman researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Testerman works with, so you can find a warm path to the right family medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Testerman received $21 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Testerman from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $21.
Companies that paid Dr. Testerman the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Testerman has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Testerman, most recently NCQA PCMH in 2012.
Awards and honors for Dr. Testerman
- 2012
- NCQA PCMH
- NCQA PPC
Source: Dmand AI Professional Profile Data
Dr. John Testerman graduated from Loma Linda University School Of Medicine
Dr. Testerman graduated from Loma Linda University School Of Medicine in 1980.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Testerman'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. John Testerman
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. John Testerman's NPI number?
Dr. John Testerman's NPI number is 1629003868. It was assigned on July 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Testerman?
Dr. John Testerman is a family medicine physician in Loma Linda, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. John Testerman practice?
Dr. Testerman practices at 11234 Anderson St, Loma Linda, CA 92354. Dr. Testerman's primary practice is Loma Linda University Medical Center in Loma Linda, California. Dmand AI also links Dr. Testerman to 2 group practices and clinics and 1 medical group.
What is Dr. John Testerman's office phone number?
The practice phone on file for Dr. Testerman is (909) 558-5075.
What is Dr. John Testerman's medical license number?
Dr. Testerman's California license number on file is G72014.
What medical group is Dr. John Testerman part of?
Dr. Testerman is linked to Loma Linda University Faculty Medical Group (LLUFMG). Dmand AI links Dr. Testerman to 1 more medical group.
Does Dr. John Testerman accept Medicare?
Yes. CMS data shows Dr. Testerman billed Medicare for 616 services in 2016.
What services does Dr. John Testerman bill to Medicare?
In 2016, Dr. Testerman's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and lab and pathology test (85610).
Where did Dr. John Testerman go to medical school?
Dr. Testerman graduated from Loma Linda University School Of Medicine in 1980.
What drugs does Dr. John Testerman prescribe most?
In 2017 Medicare Part D data, Dr. Testerman's most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Amlodipine Besylate.
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Has Dr. John Testerman received payments from drug or device companies?
CMS Open Payments shows $21 in general payments to Dr. Testerman from 1 company from 2016 to 2016. The largest total came from Novo Nordisk Inc.
How long has Dr. John Testerman been practicing?
Dr. Testerman graduated from medical school in 1980, 46 years ago.
Does Dr. John Testerman do research?
Dmand AI links 5 publications to Dr. Testerman.
Who does Dr. John Testerman publish with?
Dr. Testerman's most frequent co-authors are Lawrence Loo, MD (2 shared papers) and Wayne Stephen Dysinger, MD (1 shared paper).
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