Nathan Robert Kubeldis, DO
Internal Medicine Physician · Bakersfield, CA
Nathan Robert Kubeldis, DO is an internal medicine physician with a practice address in Bakersfield, California, and NPI 1598291437, issued on May 11, 2017. Check the license (California 20A18559, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nathan Robert Kubeldis
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A18559 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2615 Chester Ave, Bakersfield, CA 93301
- Phone
- (661) 869-6227
- Enumerated
- May 11, 2017
- Record last updated
- Aug 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210406001989); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2017
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 2615 Chester Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jenny Agyeman, CRNACertified Registered Nurse Anesthetist1538589106
- Wafa AhmedPhysician Assistant1194376152
- Christopher Alix, AGACNP-BC, FNP-BCNurse Practitioner1093220998
- Brittany Ambrose, DOEmergency Medicine Physician1205530664
- Arabella Ancheta, ACNP-BCAcute Care Nurse Practitioner1588011357
- Lindsey Anspach, L-305882Lactation Consultant (Registered Nurse)1740920040
Verify Nathan Robert Kubeldis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A18559Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
253 Medicare Part D claims for 114 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium18 claims
- Cefdinir18 claims
- Furosemide12 claims
- Prednisone12 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: $106.81
4 payments; by number, the most common kind was food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). 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.
Bills Medicare through 3 group practices
- Hospitalist Medicine Physicians OF California IncTehachapi, CA
- Hospitalist Medicine Physicians OF Texas PLLCLubbock, TX
- Northern Cochise Community Hospital IncWillcox, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathan Robert Kubeldis among 17,696 internal medicine physician records in California
Nathan Robert Kubeldis, DO is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 81% of them.
- NPI issued2017 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2017 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 61% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
214 internal medicine physician records list a practice address in Bakersfield
They are 214 of the 11,539 NPPES records with a practice address in Bakersfield, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Bakersfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jennifer Abraham, MDBakersfield, CA 933011285650259
- Pritam Badesha, MDBakersfield, CA 933011972532679
- Rosie Boparai, MDBakersfield, CA 933011740226398
- Kevork Bouldoukian, M.D.Bakersfield, CA 933011720020464
- Chung- Kwang Chen, MDBakersfield, CA 933011083610273
- David Dougherty, M.D.Bakersfield, CA 933011205858917
- Jeffery Freesemann, MDBakersfield, CA 933011336156488
- Fakhruddin Hasta, M.D.Bakersfield, CA 933011316974694
Common questions
What is Nathan Robert Kubeldis, DO's NPI number?
Nathan Robert Kubeldis, DO's National Provider Identifier (NPI) is 1598291437, issued on May 11, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Nathan Robert Kubeldis, DO located?
The NPPES record lists a practice address at 2615 Chester Ave, Bakersfield, CA, 93301. Phone: (661) 869-6227. Providers update this record themselves, so call before visiting.
How can I verify Nathan Robert Kubeldis, DO's license?
NPPES lists California license number 20A18559, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nathan Robert Kubeldis, DO prescribe under Medicare Part D?
In 2024, Nathan Robert Kubeldis, DO had 253 Medicare Part D claims for 114 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.