Dr. David J. Horner, MD
- Medicare services, 2024
- 332
- Medicare patients, 2024
- 159
- Part D claims, 2024
- 3,048
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 42002 Fox Farm Rd, Big Bear Lake, CA 92315
- Practice phone
- Call (661) 945-5984
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
High Desert Medical Group
Big Bear Lake, California
Find Dr. Horner'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 J. Horner is a family medicine physician in Big Bear Lake, California
Dr. Horner practices at High Desert Medical Group in Big Bear Lake, California.
Dr. Horner's NPI, 1407112923, was assigned on April 10, 2012. Dr. Horner graduated from College of Medicine - Tucson in 2012. Dr. Horner's California license number on file is A141403.
- NPI
- 1407112923NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709100415
- NPI enumeration date
- April 10, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (661) 945-5984
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David J. Horner practices at High Desert Medical Group in Big Bear Lake, California
Dr. Horner's primary practice is High Desert Medical Group, at 42002 Fox Farm Rd, Big Bear Lake, CA 92315 in San Bernardino County. The practice phone is (661) 945-5984.
- High Desert Medical Group42002 Fox Farm Rd, Big Bear Lake, CA 92315 · San Bernardino CountyPhone(661) 945-5984
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David J. Horner is affiliated with 4 sites of care and 2 medical groups
Dr. Horner's primary practice is High Desert Medical Group in Big Bear Lake, California. Dr. Horner is also affiliated with Bear Valley Community Hospital. The medical group on file is Heritage Victor Valley Medical Group. Dmand AI also links Dr. Horner to 1 more physician office, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. David J. Horner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Horner practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| High Desert Medical Group | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David J. Horner is one of 15,680 family medicine physicians in California
Family medicine is Dr. Horner's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Horner is board certified in family medicine by the American Board of Family Medicine. Dmand AI has Dr. Horner's licenses on file in 2 states: California and Arkansas.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
- Arkansas license
Clinical focus
Dmand AI lists acute mini-stroke (TIA), acute skin infection, alcohol use disorders, anxiety, asthma, atrial fibrillation and flutter, bronchitis and cardiac arrhythmia among the conditions Dr. Horner treats.
Family medicine physicians near Dr. Horner
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 J. Horner billed Medicare for 332 services in 2024
CMS data shows 332 Medicare services from Dr. Horner across 6 procedure codes in 2024, for 159 Medicare patients. Medicare paid $25,856 for them.
Dr. Horner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4452024: 33225%
Where Dr. Horner's Medicare services took place, 2024
- In an office28185%
- In a facility5115%
Dr. Horner compared with the California median for family medicine physicians, 2024
- Dr. Horner
- California median
- Medicare services
- 332vs 24635% above
- Medicare patients
- 159vs 11835% above
- Part D claims
- 2,515vs 8333.0 times
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Horner's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Horner?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Horner 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. David J. Horner treated 159 Medicare patients in 2024, average age 73
CMS counts 159 Medicare patients who saw Dr. Horner in 2024. The largest group is 65 to 74, with 76 patients. 75% of them have high blood pressure, and 69% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.09, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Horner's median patient age at 69, with 55% women.
Dr. Horner's Medicare patients by age, 2024
Dr. Horner's Medicare patients by sex, 2024
- Women7849%
- Men8151%
Chronic conditions among Dr. Horner's Medicare patients, 2024
- High blood pressure75%
- High cholesterol69%
- Arthritis30%
- Heart failure25%
- Mood disorders25%
- Ischemic heart disease24%
- Depression23%
- Anxiety22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Horner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David J. Horner wrote 3,048 Medicare Part D claims in 2024
In 2024, Dr. Horner wrote 3,048 Medicare Part D claims for 515 patients. 90% of them were for generic drugs. CMS names the drug for 2,515 of them, across 72 drugs with 11 or more claims each, at $115,243 in total drug cost. In 2023, CMS named 2,624 claims across 79 drugs.
Dr. Horner's Part D claims by kind of drug, 2024
- Generic2,750 claims90%
- Brand-name278 claims9%
- Other20 claims1%
Dr. Horner'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. Horner's Part D claims, 2024
- Opioids2%64 of 3,048 claims
- Antibiotics2%76 of 3,048 claims
- Antipsychotics, patients 65 and over1%26 of 3,048 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: 2,6242024: 2,5154%
Drugs named by CMS: 72 in 2024, 79 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
How Dr. David J. Horner takes part in Medicare
Dr. Horner accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David J. Horner has 1 publication on record
Dmand AI links 1 paper to Dr. Horner.
Recent publications by Dr. Horner
See who Dr. Horner researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Horner 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. David J. Horner received $1,730 in industry payments from 2016 to 2025
CMS Open Payments shows 68 general payments to Dr. Horner from 25 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $472.
General payments to Dr. Horner by program year, 2016 to 2025
Companies that paid Dr. Horner the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David J. Horner graduated from College of Medicine - Tucson
Dr. Horner graduated from College of Medicine - Tucson in 2012.
- Medical school
- Board certified in family medicine
- Board certified in addiction medicine
Source: Dmand AI Professional Profile Data
Dr. David J. Horner accepts plans from 9 insurance carriers
Dr. Horner is in network with 9 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- AR State Medicaid
- CMS Medicare
- Humana
- +1 more carriersWith a free account
Plan types Dr. Horner accepts, by number of carriers
- Medicare7
- PPO4
- HMO3
- POS2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. David J. Horner'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| 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) |
| 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 J. Horner
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 J. Horner's NPI number?
Dr. David J. Horner's NPI number is 1407112923. It was assigned on April 10, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. David J. Horner?
Dr. David J. Horner is a family medicine physician in Big Bear Lake, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. David J. Horner practice?
Dr. Horner practices at 42002 Fox Farm Rd, Big Bear Lake, CA 92315. Dr. Horner's primary practice is High Desert Medical Group in Big Bear Lake, California. Dmand AI also links Dr. Horner to 1 physician office, 1 group practice or clinic and 1 medical group.
What is Dr. David J. Horner's office phone number?
The practice phone on file for Dr. Horner is (661) 945-5984.
What is Dr. David J. Horner's medical license number?
Dr. Horner's California license number on file is A141403, one of the licenses on file in 2 states.
Which states has Dr. David J. Horner been licensed in?
Dmand AI has state licenses on file for Dr. Horner in California (2016 to 2025) and Arkansas (2015 to 2025).
Which hospitals is Dr. David J. Horner affiliated with?
Dr. Horner is affiliated with Bear Valley Community Hospital.
What medical group is Dr. David J. Horner part of?
Dr. Horner is linked to Heritage Victor Valley Medical Group. Dmand AI links Dr. Horner to 1 more medical group.
Does Dr. David J. Horner accept Medicare?
Yes. CMS data shows Dr. Horner billed Medicare for 332 services in 2024, and Dr. Horner accepts Medicare assignment.
How many Medicare patients does Dr. David J. Horner see?
CMS counts 159 Medicare patients who saw Dr. Horner in 2024, with an average age of 73.
Show 8 more questionsShow fewer questions
Is Dr. David J. Horner board certified?
Yes. Dr. Horner is board certified in family medicine by the American Board of Family Medicine.
What services does Dr. David J. Horner bill to Medicare?
In 2024, Dr. Horner's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and hospital inpatient care (99232).
Where did Dr. David J. Horner go to medical school?
Dr. Horner graduated from College of Medicine - Tucson in 2012.
What drugs does Dr. David J. Horner prescribe most?
In 2024 Medicare Part D data, Dr. Horner's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.
Has Dr. David J. Horner received payments from drug or device companies?
CMS Open Payments shows $1,730 in general payments to Dr. Horner from 25 companies from 2016 to 2025. The largest total came from Pfizer Inc.
How long has Dr. David J. Horner been practicing?
Dr. Horner graduated from medical school in 2012, 14 years ago.
Does Dr. David J. Horner do research?
Dmand AI links 1 publication to Dr. Horner.
What insurance does Dr. David J. Horner accept?
Dr. Horner is in network with 9 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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