Dr. Jonathan Hollander Kaplan, MD
- Medicare services, 2024
- 962
- Medicare patients, 2024
- 642
- Part D claims, 2024
- 326
- Hospital affiliations
- 1
- Industry payments
- $3,701
- Practice address
- 5555 Grossmont Center Drive Box 58, La Mesa, CA 91942
- Practice phone
- Call (619) 465-0711
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Kaplan's professional email, personal email and mobile number
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Dr. Jonathan Hollander Kaplan is an emergency medicine physician in La Mesa, California
Dr. Kaplan practices at Sharp Grossmont Hospital in La Mesa, California, part of Sharp HealthCare.
Dr. Kaplan's NPI, 1821451089, was assigned on April 4, 2016. Dr. Kaplan holds California license A177078.
- NPI
- 1821451089NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4880938554
- NPI enumeration date
- April 4, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 465-0711
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jonathan Hollander Kaplan practices at Sharp Grossmont Hospital in La Mesa, California
Dr. Kaplan's primary practice is Sharp Grossmont Hospital, at 5555 Grossmont Center Drive Box 58, La Mesa, CA 91942 in San Diego County. The practice phone is (619) 465-0711.
- Sharp Grossmont Hospital5555 Grossmont Center Drive Box 58, La Mesa, CA 91942 · San Diego CountyPhone(619) 465-0711
Source: Dmand AI Affiliation Data
Dr. Jonathan Hollander Kaplan is affiliated with 1 site of care and 4 medical groups
Dr. Kaplan's primary practice is Sharp Grossmont Hospital in La Mesa, California, part of Sharp HealthCare. The medical group on file is TeamHealth. Dmand AI also links Dr. Kaplan to 3 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jonathan Hollander Kaplan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kaplan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sharp Grossmont Hospital | Available with a free account |
| +3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Sharp HealthCare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jonathan Hollander Kaplan is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Kaplan's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Kaplan's licenses on file in 2 states: California and Pennsylvania.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
- Pennsylvania license
Emergency medicine physicians near Dr. Kaplan
Counts of emergency 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. Jonathan Hollander Kaplan billed Medicare for 962 services in 2024
CMS data shows 962 Medicare services from Dr. Kaplan across 5 procedure codes in 2024, for 642 Medicare patients. Medicare paid $89,079 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Kaplan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4702024: 66742%
- Tests and treatments
- 2023: 1822024: 29562%
Dr. Kaplan compared with the California median for emergency medicine physicians, 2024
- Dr. Kaplan
- California median
- Medicare services
- 962vs 2653.6 times
- Medicare patients
- 642vs 2432.6 times
- Part D claims
- 223vs 623.6 times
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Kaplan'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jonathan Hollander Kaplan treated 642 Medicare patients in 2024, average age 73
CMS counts 642 Medicare patients who saw Dr. Kaplan in 2024. The largest group is 65 to 74, with 217 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 58% are also on Medicaid. Their average risk score is 2.44, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Kaplan's median patient age at 44, with 56% women.
Dr. Kaplan's Medicare patients by age, 2024
Dr. Kaplan's Medicare patients by sex, 2024
- Women35155%
- Men29145%
Chronic conditions among Dr. Kaplan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Diabetes50%
- Mood disorders50%
- Depression46%
- Anxiety44%
- Heart failure39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kaplan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jonathan Hollander Kaplan wrote 326 Medicare Part D claims in 2024
In 2024, Dr. Kaplan wrote 326 Medicare Part D claims for 230 patients. 96% of them were for generic drugs. CMS names the drug for 223 of them, across 9 drugs with 11 or more claims each, at $2,517 in total drug cost. In 2023, CMS named 128 claims across 7 drugs.
Dr. Kaplan's Part D claims by kind of drug, 2024
- Generic312 claims96%
- Brand-name14 claims4%
Dr. Kaplan'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. Kaplan's Part D claims, 2024
- Opioids13%41 of 326 claims
- Antibiotics39%128 of 326 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: 1282024: 22374%
Drugs named by CMS: 9 in 2024, 7 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. Jonathan Hollander Kaplan takes part in Medicare
Dr. Kaplan 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. Jonathan Hollander Kaplan received $3,701 in industry payments in 2025
CMS Open Payments shows 7 general payments to Dr. Kaplan from 3 drug and device companies in 2025. Grants make up the largest share, 92% of the total. Medtronic, Inc. paid the most, $1,841.
General payments to Dr. Kaplan by kind, 2025 to 2025
- Grants$3,40092%
- Food and beverage$3018%
Companies that paid Dr. Kaplan the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jonathan Hollander Kaplan'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 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Jonathan Hollander Kaplan
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. Jonathan Hollander Kaplan's NPI number?
Dr. Jonathan Hollander Kaplan's NPI number is 1821451089. It was assigned on April 4, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan Hollander Kaplan?
Dr. Jonathan Hollander Kaplan is an emergency medicine physician in La Mesa, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Jonathan Hollander Kaplan practice?
Dr. Kaplan practices at 5555 Grossmont Center Drive Box 58, La Mesa, CA 91942. Dr. Kaplan's primary practice is Sharp Grossmont Hospital in La Mesa, California, part of Sharp HealthCare. Dmand AI also links Dr. Kaplan to 3 medical groups.
What is Dr. Jonathan Hollander Kaplan's office phone number?
The practice phone on file for Dr. Kaplan is (619) 465-0711.
What is Dr. Jonathan Hollander Kaplan's medical license number?
Dr. Kaplan holds California license A177078, one of the licenses on file in 2 states.
Which states has Dr. Jonathan Hollander Kaplan been licensed in?
Dmand AI has state licenses on file for Dr. Kaplan in California and Pennsylvania.
Which hospitals is Dr. Jonathan Hollander Kaplan affiliated with?
Dr. Kaplan practices at Sharp Grossmont Hospital in La Mesa, California.
What medical group is Dr. Jonathan Hollander Kaplan part of?
Dr. Kaplan is linked to TeamHealth. Dmand AI links Dr. Kaplan to 3 more medical groups.
Does Dr. Jonathan Hollander Kaplan accept Medicare?
Yes. CMS data shows Dr. Kaplan billed Medicare for 962 services in 2024, and Dr. Kaplan accepts Medicare assignment.
How many Medicare patients does Dr. Jonathan Hollander Kaplan see?
CMS counts 642 Medicare patients who saw Dr. Kaplan in 2024, with an average age of 73.
Show 4 more questionsShow fewer questions
What services does Dr. Jonathan Hollander Kaplan bill to Medicare?
In 2024, Dr. Kaplan's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
What drugs does Dr. Jonathan Hollander Kaplan prescribe most?
In 2024 Medicare Part D data, Dr. Kaplan's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Cephalexin and Cyclobenzaprine HCl.
Has Dr. Jonathan Hollander Kaplan received payments from drug or device companies?
CMS Open Payments shows $3,701 in general payments to Dr. Kaplan from 3 companies from 2025 to 2025. The largest total came from Medtronic, Inc.
How long has Dr. Jonathan Hollander Kaplan been practicing?
Dr. Kaplan graduated from medical school in 2016, 10 years ago.
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