Richard A. Guest, M.D.
Vascular Surgery Physician · Northridge, CA
Richard A. Guest, M.D. is a vascular surgery physician with a practice address in Northridge, California, and NPI 1811064728, issued on Nov 29, 2006. Check the license (California A33685, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Richard A. Guest
- Credential
- M.D.
- Primary taxonomy
- Vascular Surgery Physician 2086S0129X
- License number
- A33685 CA
Self-reported in NPPES; status is on the state search - Practice location
- 18250 Roscoe Blvd, Northridge, CA 91325
- Phone
- (818) 998-8591
- Enumerated
- Nov 29, 2006
- Record last updated
- Jun 2, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (818) 998-1196
- Medicare enrollment
- Enrolled (PECOS I20110406000065); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 18250 Roscoe Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Harjeet Dhaliwal, FNPNurse Practitioner1669048872
- Piyush Jogani, MDGastroenterology Physician1730197609
- Garabed Kayekjian, M.D.Pediatrics Physician1043203763
- Robert Kovalesky, LMFTMarriage & Family Therapist1326791476
- Elva Ruth Mezquita, M.D.Psychiatry Physician1477630994
- Teresita Napal, MDSpecialist1366584609
Verify Richard A. Guest in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A33685Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average vascular surgery physician in 2024
18 Medicare Part D claims, against an average of 201 among the 3,936 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.
Bills Medicare through 2 group practices
- Christo Cardiology And Vascular Medicine IncLos Angeles, CA
- Priority Family Care Center ApcLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Vascular Surgery Physician providers in California
There are 580 vascular surgery physician records in California.
Other vascular surgery physician records in California
- Oliver Aalami, M.D.Stanford, CA1225229024
- Shahram Aarabi, MDOakland, CA1972700458
- Arad Abadi, MDLancaster, CA1730673724
- Ryan Abdul-HaqqWest Hollywood, CA1386087864
- Andrew Abi-Chaker, M.D.Sherman Oaks, CA1528488467
- Ahmed Abou-Zamzam, M.D.Loma Linda, CA1558306795
- Joseph Abu-Dalu, MDLos Angeles, CA1821157587
- Queen Abure, MDSan Francisco, CA1710772074
- Riad Adoumie, M.D.Torrance, CA1467465930
- Massoud Agahi, M.D.Beverly Hills, CA1952367070
Common questions
What is Richard A. Guest, M.D.'s NPI number?
Richard A. Guest, M.D.'s National Provider Identifier (NPI) is 1811064728, issued on Nov 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard A. Guest, M.D. located?
The NPPES record lists a practice address at 18250 Roscoe Blvd, Northridge, CA, 91325. Phone: (818) 998-8591. Providers update this record themselves, so call before visiting.
How can I verify Richard A. Guest, M.D.'s license?
NPPES lists California license number A33685, 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 A. Guest, M.D. prescribe under Medicare Part D?
In 2024, Richard A. Guest, M.D. had 18 Medicare Part D claims; the average among vascular surgery physician prescribers was 201. 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.