Joseph C. Preston, M.D.
Critical Care Medicine (Internal Medicine) Physician · Orange, CA
Joseph C. Preston, M.D. is a critical care medicine (internal medicine) physician with a practice address in Orange, California, and NPI 1457329674, issued on Mar 14, 2006. Check the license (California G80997, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joseph C. Preston
- Credential
- M.D.
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- G80997 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1010 W LA Veta Ave Ste 750, Orange, CA 92868
- Phone
- (714) 361-6600
- Enumerated
- Mar 14, 2006
- Record last updated
- Jul 21, 2022
- Fax
- (714) 919-8804
- Medicaid ID
- 1912919804 CA
- Medicare enrollment
- Enrolled (PECOS I20070510000634); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 1993
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 723 in California → Look up another NPI →
Also registered at 1010 W LA Veta Ave Ste 750
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Benjamin Davis, P.A.Medical Physician Assistant1609247477
- Lisa Evans, NPAcute Care Nurse Practitioner1346561057
- Peter Fotinakes, M.D.Sleep Medicine (Internal Medicine) Physician1679542518
- Shahid Hayat, M.D.Critical Care Medicine (Internal Medicine) Physician1316047913
- Seogeun HongInternal Medicine Physician1871927962
- Christopher Hwe, M.D.Pulmonary Disease Physician1790149136
Verify Joseph C. Preston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G80997Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
86 Medicare Part D claims for 14 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium28 claims
- Metformin Hcl12 claims
- Tamsulosin Hcl12 claims
- Finasteride11 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.
Bills Medicare through 2 group practices
- Integrated Critical Care And Pulmonary Specialists IncOrange, CA
- Southbay Critical Care A Medical PartnershipTorrance, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph C. Preston among 723 critical care medicine (internal medicine) physician records in California
Joseph C. Preston, M.D. is one of 723 critical care medicine (internal medicine) physician records with a practice address in California. 87% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 60% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1993 · median 2005 among the 559 with a school on file
- Record last updated2022 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in California
There are 723 critical care medicine (internal medicine) physician records in California.
All 723 in California → Every provider in Orange → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Adithya Cattamanchi, MDOrange, CA 928681336106871
- Lillian Chow, MDOrange, CA 928681972778520
- Amir Ghiassi, M.D.Orange, CA 928681518983899
- Shahid Hayat, M.D.Orange, CA 928681316047913
- Steven Leven, MDOrange, CA 928681538166780
- Reza Mina-Araghi, MDOrange, CA 928681699785279
- Hugo Paz Y Mar, M.D.Orange, CA 928681528231081
- Sudhir Rajan, M.D.Orange, CA 928681396961249
Common questions
What is Joseph C. Preston, M.D.'s NPI number?
Joseph C. Preston, M.D.'s National Provider Identifier (NPI) is 1457329674, issued on Mar 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph C. Preston, M.D. located?
The NPPES record lists a practice address at 1010 W LA Veta Ave Ste 750, Orange, CA, 92868. Phone: (714) 361-6600. Providers update this record themselves, so call before visiting.
How can I verify Joseph C. Preston, M.D.'s license?
NPPES lists California license number G80997, 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 Joseph C. Preston, M.D. prescribe under Medicare Part D?
In 2024, Joseph C. Preston, M.D. had 86 Medicare Part D claims for 14 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.