Robert M. Porzio, DO
Emergency Medicine Physician · Redding, CA
Robert M. Porzio, DO is an emergency medicine physician with a practice address in Redding, California, and NPI 1285654921, issued on Jul 19, 2006. Check the license (California 20A9155, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert M. Porzio
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 20A9155 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2175 Rosaline Ave, Redding, CA 96001
- Phone
- (530) 225-6000
- Enumerated
- Jul 19, 2006
- Record last updated
- Aug 24, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (818) 587-2493
- Medicaid ID
- 00AX91550 CA
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 2175 Rosaline Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jarred Anderson, DOEmergency Medicine Physician1063902104
- Khin Aung, M.DInternal Medicine Physician1154732154
- Sukhpreet BadeshaStudent in an Organized Health Care Education/Training Program1467048249
- Shaina Beer, AGACNP-BCAcute Care Nurse Practitioner1811593106
Verify Robert M. Porzio in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A9155Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average emergency medicine physician in 2024
44 Medicare Part D claims for 14 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.
Most prescribed
- Estradiol (Twice Weekly)12 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.
Robert M. Porzio among 7,751 emergency medicine physician records in California
Robert M. Porzio, DO is one of 7,751 emergency medicine physician records with a practice address in California. 81% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 60% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2009 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
39 emergency medicine physician records list a practice address in Redding
They are 39 of the 3,572 NPPES records with a practice address in Redding, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Redding → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Robert Duvoisin, DORedding, CA 960011790704419
- John Everett, DORedding, CA 960011235158957
- Federico Grabiel, MDRedding, CA 960011174549901
- Julie Hamilton, MDRedding, CA 960011700813425
- Robert Hamilton, MDRedding, CA 960011407885759
- Pamela Ikuta, DORedding, CA 960011902822745
- Robert Lawson, MDRedding, CA 960011891713145
- Christopher Louisell, MDRedding, CA 960011952321689
Common questions
What is Robert M. Porzio, DO's NPI number?
Robert M. Porzio, DO's National Provider Identifier (NPI) is 1285654921, issued on Jul 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert M. Porzio, DO located?
The NPPES record lists a practice address at 2175 Rosaline Ave, Redding, CA, 96001. Phone: (530) 225-6000. Providers update this record themselves, so call before visiting.
How can I verify Robert M. Porzio, DO's license?
NPPES lists California license number 20A9155, 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 Robert M. Porzio, DO prescribe under Medicare Part D?
In 2024, Robert M. Porzio, DO had 44 Medicare Part D claims for 14 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.