Dr. Roy A. Kaplan, MD
- Medicare services, 2019
- 202
- Part D claims, 2024
- 243
- Industry payments
- $377,698
- Affiliated sites
- 1
- State license
- 1
- Practice address
- 85 Sierra Park Road, Mammoth Lakes, CA 93546
- Practice phone
- Call (760) 934-3311
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mammoth Hospital - Clinic
Rural Health Clinic - Hospital-Owned · Mammoth Lakes, California
Find Dr. Kaplan's professional email, personal email and mobile number
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Dr. Roy A. Kaplan is a rheumatologist in Mammoth Lakes, California
Dr. Kaplan practices at Mammoth Hospital - Clinic in Mammoth Lakes, California.
Dr. Kaplan's NPI, 1215962451, was assigned on July 12, 2006. Dr. Kaplan graduated from Yale School of Medicine in 1972. Dr. Kaplan's California license number on file is G31859.
- NPI
- 1215962451NPI Registry (opens in a new tab)
- NPI enumeration date
- July 12, 2006
- NPI status
- Active
- Practice phone
- (760) 934-3311
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1972
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Roy A. Kaplan practices at Mammoth Hospital - Clinic in Mammoth Lakes, California
Dr. Kaplan's primary practice is Mammoth Hospital - Clinic, at 85 Sierra Park Road, Mammoth Lakes, CA 93546. The practice phone is (760) 934-3311.
- Mammoth Hospital - Clinic85 Sierra Park Road, Mammoth Lakes, CA 93546Phone(760) 934-3311
Source: Dmand AI Affiliation Data
Dr. Roy A. Kaplan is affiliated with 1 site of care
Dr. Kaplan's primary practice is Mammoth Hospital - Clinic in Mammoth Lakes, California.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Roy A. 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 |
|---|---|
| Mammoth Hospital - Clinic | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Roy A. Kaplan is one of 821 rheumatologists in California
Rheumatology is Dr. Kaplan's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Kaplan is board certified in internal medicine by the American Board of Internal Medicine. Dr. Kaplan has a license on file in California.
Specialties and state licenses
- Rheumatology, CaliforniaPrimary
Rheumatologists near Dr. Kaplan
Counts of rheumatologists 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. Roy A. Kaplan billed Medicare for 202 services in 2019
CMS data shows 202 Medicare services from Dr. Kaplan across 5 procedure codes in 2019. Medicare paid $7,446 for them. Every service was in an office.
Dr. Kaplan's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 2,8072019: 10296%
- Drugs given in the office
- 2018: 128,1882019: 79100%
- Surgery
- 2018: 1,5562019: 2199%
- Imaging
- 2018: 8202019: 0100%
- Tests and treatments
- 2018: 1,5902019: 0100%
Dr. Kaplan compared with the California median for rheumatologists, 2019
- Dr. Kaplan
- California median
- Medicare services
- 202vs 90078% below
- Part D claims
- 78vs 96292% below
Medians across 773 rheumatologists in California with Dmand AI profiles that report each measure.
Dr. Kaplan's most billed Medicare procedure codes, 2019
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. Kaplan and other rheumatologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Roy A. Kaplan's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Dr. Kaplan's median patient age at 69, with 77% women.
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 69
Patient panel by sex, all payers
- Women77%
- Men23%
Source: Dmand AI Patient Panel Data
Dr. Roy A. Kaplan wrote 243 Medicare Part D claims in 2024
In 2024, Dr. Kaplan wrote 243 Medicare Part D claims for 18 patients. 74% of them were for generic drugs. CMS names the drug for 78 of them, across 5 drugs with 11 or more claims each, at $240,958 in total drug cost. In 2023, CMS named 90 claims across 6 drugs.
Dr. Kaplan's Part D claims by kind of drug, 2024
- Generic179 claims74%
- Brand-name64 claims26%
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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 902024: 7813%
Drugs named by CMS: 5 in 2024, 6 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
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Dr. Roy A. Kaplan received $377,698 in industry payments from 2016 to 2025
CMS Open Payments shows 940 general payments to Dr. Kaplan from 27 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 48% of the total. Celgene Corporation paid the most, $211,134.
General payments to Dr. Kaplan by program year, 2016 to 2025
General payments to Dr. Kaplan by kind, 2016 to 2025
- Speaker and faculty fees$182,51748%
- Honoraria$82,94422%
- Travel and lodging$67,48418%
- Consulting fees$24,0846%
- Other$20,6685%
Companies that paid Dr. Kaplan 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. Roy A. Kaplan has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Kaplan.
Awards and honors for Dr. Kaplan
- Undated
- ACR Fellow
- Checkbook Top Doc
Source: Dmand AI Professional Profile Data
Dr. Roy A. Kaplan graduated from Yale School of Medicine
Dr. Kaplan graduated from Yale School of Medicine in 1972. Dr. Kaplan is a member of ACR.
- Medical school
- Board certified in internal medicine
- Board certified in rheumatology
Source: Dmand AI Professional Profile Data
Sources for Dr. Roy A. 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 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) |
| 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. Roy A. 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. Roy A. Kaplan's NPI number?
Dr. Roy A. Kaplan's NPI number is 1215962451. It was assigned on July 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Roy A. Kaplan?
Dr. Roy A. Kaplan is a rheumatologist in Mammoth Lakes, California. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Roy A. Kaplan practice?
Dr. Kaplan practices at 85 Sierra Park Road, Mammoth Lakes, CA 93546. Dr. Kaplan's primary practice is Mammoth Hospital - Clinic in Mammoth Lakes, California.
What is Dr. Roy A. Kaplan's office phone number?
The practice phone on file for Dr. Kaplan is (760) 934-3311.
What is Dr. Roy A. Kaplan's medical license number?
Dr. Kaplan's California license number on file is G31859.
Does Dr. Roy A. Kaplan accept Medicare?
Yes. CMS data shows Dr. Kaplan billed Medicare for 202 services in 2019.
Is Dr. Roy A. Kaplan board certified?
Yes. Dr. Kaplan is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Roy A. Kaplan bill to Medicare?
In 2019, Dr. Kaplan's most billed Medicare services were injected or infused drug (J3301), office visit, established patient (99214) and office visit, established patient (99215).
Where did Dr. Roy A. Kaplan go to medical school?
Dr. Kaplan graduated from Yale School of Medicine in 1972.
What drugs does Dr. Roy A. Kaplan prescribe most?
In 2024 Medicare Part D data, Dr. Kaplan's most prescribed drugs by claims were Prednisone, Leucovorin Calcium and Teriparatide.
Has Dr. Roy A. Kaplan received payments from drug or device companies?
CMS Open Payments shows $377,698 in general payments to Dr. Kaplan from 27 companies from 2016 to 2025. The largest total came from Celgene Corporation.
How long has Dr. Roy A. Kaplan been practicing?
Dr. Kaplan graduated from medical school in 1972, 54 years ago.
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