Gregory J. Macchio, M.D.
Anesthesiology Physician · Mission Viejo, CA
Gregory J. Macchio, M.D. is an anesthesiology physician with a practice address in Mission Viejo, California, and NPI 1386621100, issued on Dec 22, 2005. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gregory J. Macchio
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 01044919A IN
Self-reported in NPPES; status is on the state search - Practice location
- 27700 Medical Center RD, Mission Viejo, CA 92691
- Phone
- (949) 364-1400
- Enumerated
- Dec 22, 2005
- Record last updated
- Aug 30, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicaid ID
- 200112130 IN
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 27700 Medical Center RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ivan Babin, M.D.Vascular & Interventional Radiology Physician1134461486
- Danniella BermanPhysician Assistant1740849363
- Michael Blumenfeld, M.D.Anatomic Pathology & Clinical Pathology Physician1578679882
- Emily Brady, MD, MPHAnesthesiology Physician1801107669
Verify Gregory J. Macchio in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $151.28
1 payment: food and beverage; the largest payer was Medtronic, Inc. The 17,774 providers of this specialty with any payment received $669.59 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.
Gregory J. Macchio among 7,571 anesthesiology physician records in California
Gregory J. Macchio, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2010 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
37 anesthesiology physician records list a practice address in Mission Viejo
They are 37 of the 2,156 NPPES records with a practice address in Mission Viejo, and 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Mission Viejo → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- William Akrawi, MDMission Viejo, CA 926911588619407
- Shawn Bullock, MDMission Viejo, CA 926911164460978
- Mark Burkhardt, MDMission Viejo, CA 926911346288214
- Rodrigo Covarrubias, MDMission Viejo, CA 926911639174501
- Perry Eisner, MDMission Viejo, CA 926911861447658
- Geoffrey Gonick, MDMission Viejo, CA 926911558315556
- Denise Hamilton, MDMission Viejo, CA 926911548208333
- Tod Henrichsen, MDMission Viejo, CA 926911023056843
Common questions
What is Gregory J. Macchio, M.D.'s NPI number?
Gregory J. Macchio, M.D.'s National Provider Identifier (NPI) is 1386621100, issued on Dec 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gregory J. Macchio, M.D. located?
The NPPES record lists a practice address at 27700 Medical Center RD, Mission Viejo, CA, 92691. Phone: (949) 364-1400. Providers update this record themselves, so call before visiting.
How can I verify Gregory J. Macchio, M.D.'s license?
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.
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.