Austin R.t. Colohan, M.D.
Neurological Surgery Physician · Loma Linda, CA
Austin R.t. Colohan, M.D. is a neurological surgery physician with a practice address in Loma Linda, California, and NPI 1366486227, issued on Jun 15, 2006. Check the license (California G85008, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Austin R.t. Colohan
- Credential
- M.D.
- Primary taxonomy
- Neurological Surgery Physician 207T00000X
- License number
- G85008 CA
Self-reported in NPPES; status is on the state search - Practice location
- 25455 Barton RD, Loma Linda, CA 92354
- Phone
- (909) 558-6388
- Enumerated
- Jun 15, 2006
- Record last updated
- Jul 14, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicaid ID
- 00G850080 CA
- Entity
- Type 1 · individual
8 nearest neurological surgery physician records → All 929 in California → Look up another NPI →
Also registered at 25455 Barton RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dawn Banks, P.A.Physician Assistant1699705574
- Ahmed Bata, MDOrthopaedic Surgery Physician1184864423
- Gary Botimer, MDOrthopaedic Surgery Physician1124018114
- Emerald Caruso, M.D.Obstetrics & Gynecology Physician1811015209
- Zachary Cash, P.A.Physician Assistant1275717316
- Jian Chen, M.D.Family Medicine Physician1841633617
Verify Austin R.t. Colohan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G85008Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average neurological surgery physician in 2024
31 Medicare Part D claims, against an average of 172 among the 4,378 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of 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.
Austin R.t. Colohan among 929 neurological surgery physician records in California
Austin R.t. Colohan, M.D. is one of 929 neurological surgery physician records with a practice address in California. 77% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 62% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2008 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurological Surgery Physician providers in California
There are 929 neurological surgery physician records in California.
All 929 in California → Every provider in Loma Linda → Neurological Surgery Physician nationwide →
The 8 neurological surgery physician records with the nearest ZIP codes
- Achal Achrol, M.D.Loma Linda, CA 923541275783276
- Warren Boling, M.D.Loma Linda, CA 923541912007790
- Daniel Dilorenzo, MD, PHDLoma Linda, CA 923541851546600
- Justin Dye, M.D.Loma Linda, CA 923541629212535
- Namath Hussain, M.D., MBALoma Linda, CA 923541285845404
- Walter Johnson, M.D.Loma Linda, CA 923541528096757
- Shokry Lawandy, D.O.Loma Linda, CA 923541376705418
- Miguel Lopez-Gonzalez, M.D.Loma Linda, CA 923541376717496
Common questions
What is Austin R.t. Colohan, M.D.'s NPI number?
Austin R.t. Colohan, M.D.'s National Provider Identifier (NPI) is 1366486227, issued on Jun 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Austin R.t. Colohan, M.D. located?
The NPPES record lists a practice address at 25455 Barton RD, Loma Linda, CA, 92354. Phone: (909) 558-6388. Providers update this record themselves, so call before visiting.
How can I verify Austin R.t. Colohan, M.D.'s license?
NPPES lists California license number G85008, 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 Austin R.t. Colohan, M.D. prescribe under Medicare Part D?
In 2024, Austin R.t. Colohan, M.D. had 31 Medicare Part D claims; the average among neurological surgery physician prescribers was 172. 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.