Charles S. Kaplan, MD
Internal Medicine Physician · Tucson, AZ
Charles S. Kaplan, MD is an internal medicine physician with a practice address in Tucson, Arizona, and NPI 1538117536, issued on May 4, 2006. Check the license (Arizona 15968, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Charles S. Kaplan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 15968 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 5880 N LA Cholla Blvd, Tucson, AZ 85741
- Phone
- (520) 751-3695
- Enumerated
- May 4, 2006
- Record last updated
- May 13, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (520) 547-2390
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Also registered at 5880 N LA Cholla Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sandra Kunzman, PA-CPhysician Assistant1851439541
Verify Charles S. Kaplan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 15968Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.2 times the Medicare Part D claims of the average internal medicine physician in 2024
16,663 Medicare Part D claims for 1,083 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 974 claims were for opioids.
Most prescribed
- Levothyroxine Sodium871 claims
- Atorvastatin Calcium595 claims
- Lisinopril544 claims
- Gabapentin537 claims
- Amlodipine Besylate532 claims
- Losartan Potassium420 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $123.57
7 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Charles S. Kaplan among 2,853 internal medicine physician records in Arizona
Charles S. Kaplan, MD is one of 2,853 internal medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2009 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
651 internal medicine physician records list a practice address in Tucson
They are 651 of the 18,788 NPPES records with a practice address in Tucson, and 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Tucson → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Adam Boyer, MDTucson, AZ 857411760440317
- Patricia Carter, MDTucson, AZ 857411780688689
- David Gates, MDTucson, AZ 857411750346565
- Paul Gregory, MDTucson, AZ 857411255397790
- Terry Hargrove, MDTucson, AZ 857411336117092
- Jocelyn Hendricks, D.O.Tucson, AZ 857411497742068
- Brian Mayernick, MDTucson, AZ 857411114916384
- Rebecca Nara, M.D.Tucson, AZ 857411083602700
Common questions
What is Charles S. Kaplan, MD's NPI number?
Charles S. Kaplan, MD's National Provider Identifier (NPI) is 1538117536, issued on May 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Charles S. Kaplan, MD located?
The NPPES record lists a practice address at 5880 N LA Cholla Blvd, Tucson, AZ, 85741. Phone: (520) 751-3695. Providers update this record themselves, so call before visiting.
How can I verify Charles S. Kaplan, MD's license?
NPPES lists Arizona license number 15968, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Charles S. Kaplan, MD prescribe under Medicare Part D?
In 2024, Charles S. Kaplan, MD had 16,663 Medicare Part D claims for 1,083 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.