Richard I. Blum, M.D.
Cardiovascular Disease Physician · San Diego, CA
Richard I. Blum, M.D. is a cardiovascular disease physician with a practice address in San Diego, California, and NPI 1043310030, issued on Sep 22, 2006. Check the license (California G53758, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Richard I. Blum
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- G53758 CA
Self-reported in NPPES; status is on the state search - Practice location
- 550 Washington St Ste 641, San Diego, CA 92103
- Phone
- (619) 296-3888
- Enumerated
- Sep 22, 2006
- Record last updated
- Sep 17, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (619) 296-3898
- Medicaid ID
- 00G537580 CA
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 550 Washington St Ste 641
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Amelia Simpson, M.D.Trauma Surgery Physician1538484084
Verify Richard I. Blum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G53758Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
13 Medicare Part D claims, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.
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.
Richard I. Blum among 2,574 cardiovascular disease physician records in California
Richard I. Blum, M.D. is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 45% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2020 · 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 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in San Diego → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Daniel Blanchard, M.D.San Diego, CA 921031487684155
- Huei-Sheng Chen, MD, PHDSan Diego, CA 921031124044821
- Kiyon Chung, MDSan Diego, CA 921031972517910
- Bruno Cotter, M.D.San Diego, CA 921031205886389
- Lori Daniels, M.D.San Diego, CA 921031295755080
- Anthony Demaria, M.D.San Diego, CA 921031124043948
- Thomas Diggs, M.D.San Diego, CA 921031962418889
- Andrew Kahn, M.D.San Diego, CA 921031841247384
Common questions
What is Richard I. Blum, M.D.'s NPI number?
Richard I. Blum, M.D.'s National Provider Identifier (NPI) is 1043310030, issued on Sep 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard I. Blum, M.D. located?
The NPPES record lists a practice address at 550 Washington St Ste 641, San Diego, CA, 92103. Phone: (619) 296-3888. Providers update this record themselves, so call before visiting.
How can I verify Richard I. Blum, M.D.'s license?
NPPES lists California license number G53758, 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 Richard I. Blum, M.D. prescribe under Medicare Part D?
In 2024, Richard I. Blum, M.D. had 13 Medicare Part D claims; the average among cardiovascular disease physician prescribers was 3,078. 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.