Joel Isaac Barthelow, M.D.
Ophthalmology Physician · Chico, CA
Joel Isaac Barthelow, M.D. is an ophthalmology physician with a practice address in Chico, California, and NPI 1013974625, issued on Apr 27, 2006. Check the license (California A94358, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joel Isaac Barthelow
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A94358 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1700 Bruce RD, Chico, CA 95928
- Phone
- (530) 891-1900
- Enumerated
- Apr 27, 2006
- Record last updated
- Sep 2, 2022
- Fax
- (530) 895-1531
- Medicare enrollment
- Enrolled (PECOS I20061027000476); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 1700 Bruce RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Riley Bullert, ODOptometrist1639656903
- Ann-Chi Chen, O.D.Optometrist1215243365
- Dylan Franchi, ODOptometrist1780350595
- Jonathan Mennucci, O.D.Optometrist1871946525
- Michael Merry, ODOptometrist1669725008
- Craig Montgomery, O.D.Optometrist1265986392
Verify Joel Isaac Barthelow in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A94358Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average ophthalmology physician in 2024
1,185 Medicare Part D claims for 458 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.
Most prescribed
- Latanoprost319 claims
- Ketorolac Tromethamine262 claims
- Azelastine Hcl100 claims
- Lumigan64 claims
- Neomycin-Polymyxin-Dexameth39 claims
- Timolol Maleate37 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,052.57
65 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 13,221 providers of this specialty with any payment received $4,535.02 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 one group practice
- Ridge Eye Care IncChico, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joel Isaac Barthelow among 2,899 ophthalmology physician records in California
Joel Isaac Barthelow, M.D. is one of 2,899 ophthalmology 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2002 · median 2001 among the 1,907 with a school on file
- Record last updated2022 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Chico → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Terrence Spencer, M.D.Chico, CA 959281538124292
- John Stabel, M.D.Chico, CA 959281073576328
- Pablo Arregui, MDChico, CA 959261043253347
- Michael Goloff, M.D.Chico, CA 959261861837452
- Jordan Hastings, MDChico, CA 959261609457308
- Val Shaw, MDChico, CA 959261073545315
- Robert Stone, MDChico, CA 959261306959499
- David Woods, MDChico, CA 959261225038185
Common questions
What is Joel Isaac Barthelow, M.D.'s NPI number?
Joel Isaac Barthelow, M.D.'s National Provider Identifier (NPI) is 1013974625, issued on Apr 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joel Isaac Barthelow, M.D. located?
The NPPES record lists a practice address at 1700 Bruce RD, Chico, CA, 95928. Phone: (530) 891-1900. Providers update this record themselves, so call before visiting.
How can I verify Joel Isaac Barthelow, M.D.'s license?
NPPES lists California license number A94358, 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 Joel Isaac Barthelow, M.D. prescribe under Medicare Part D?
In 2024, Joel Isaac Barthelow, M.D. had 1,185 Medicare Part D claims for 458 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Joel Isaac Barthelow, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.