Ralph A. Herrera, MD
Internal Medicine Physician · Sacramento, CA
Ralph A. Herrera, MD is an internal medicine physician with a practice address in Sacramento, California, and NPI 1306924055, issued on Nov 1, 2006. Check the license (California A63813, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ralph A. Herrera
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A63813 CA
Self-reported in NPPES; status is on the state search - Practice location
- 6600 Bruceville RD, Sacramento, CA 95823
- Phone
- (916) 688-2000
- Enumerated
- Nov 1, 2006
- Record last updated
- Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A638130 CA
- Medicare enrollment
- Enrolled (PECOS I20101201000650); accepts Medicare assignment
- Medical or professional school
- Creighton University School Of Medicine, 1996
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 6600 Bruceville RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ralph A. Herrera in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A63813Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average internal medicine physician in 2024
6,435 Medicare Part D claims for 716 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 440 claims were for opioids.
Most prescribed
- Atorvastatin Calcium430 claims
- Hydrocodone-Acetaminophen316 claims
- Amlodipine Besylate239 claims
- Levothyroxine Sodium169 claims
- Losartan Potassium168 claims
- Lisinopril-Hydrochlorothiazide151 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 one group practice
- Permanente Medical Group IncStockton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ralph A. Herrera among 17,696 internal medicine physician records in California
Ralph A. Herrera, MD is one of 17,696 internal medicine 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1996 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
601 internal medicine physician records list a practice address in Sacramento
They are 601 of the 33,083 NPPES records with a practice address in Sacramento, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Sacramento → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Hung-Anh Nguyen, MDSacramento, CA 958231871594036
- Dean Rinard, M.D.Sacramento, CA 958231043311335
Common questions
What is Ralph A. Herrera, MD's NPI number?
Ralph A. Herrera, MD's National Provider Identifier (NPI) is 1306924055, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ralph A. Herrera, MD located?
The NPPES record lists a practice address at 6600 Bruceville RD, Sacramento, CA, 95823. Phone: (916) 688-2000. Providers update this record themselves, so call before visiting.
How can I verify Ralph A. Herrera, MD's license?
NPPES lists California license number A63813, 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 Ralph A. Herrera, MD prescribe under Medicare Part D?
In 2024, Ralph A. Herrera, MD had 6,435 Medicare Part D claims for 716 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.