Joan Karen Feltman, M.D.
Internal Medicine Physician · Santa Monica, CA
Joan Karen Feltman, M.D. is an internal medicine physician with a practice address in Santa Monica, California, and NPI 1053418640, issued on Sep 17, 2006. Check the license (California G23409, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joan Karen Feltman
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G23409 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2021 Santa Monica Blvd, Santa Monica, CA 90404
- Phone
- (310) 315-0131
- Enumerated
- Sep 17, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (310) 453-0133
- Medicare enrollment
- Enrolled (PECOS I20041109001167); accepts Medicare assignment
- Medical or professional school
- R Franklin University Of Med & Sci/Chicago Medical School, 1971
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 2021 Santa Monica Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joan Karen Feltman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G23409Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% more Medicare Part D claims than the average internal medicine physician in 2024
4,162 Medicare Part D claims for 413 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 39 claims were for opioids.
Most prescribed
- Atorvastatin Calcium521 claims
- Levothyroxine Sodium296 claims
- Amlodipine Besylate249 claims
- Losartan Potassium195 claims
- Lisinopril139 claims
- Rosuvastatin Calcium139 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.
The MIPS final score for 2023 (Medicare payment program): 21.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $120.22
1 payment: food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Joan Karen Feltman among 17,696 internal medicine physician records in California
Joan Karen Feltman, M.D. 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
- Graduated1971 · median 2004 among the 11,065 with a school on file
- Record last updated2007 · 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).
168 internal medicine physician records list a practice address in Santa Monica
They are 168 of the 5,151 NPPES records with a practice address in Santa Monica, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Santa Monica → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Robert Ashley, MDSanta Monica, CA 904041780628487
- Mitchell Becker, M.D.Santa Monica, CA 904041922033935
- Chiquita Flowers, M.D.Santa Monica, CA 904041972595700
- Glenn Gorlitsky, M.D.Santa Monica, CA 904041881625143
- Oscar Hernandez, M.D.Santa Monica, CA 904041699706952
- Mark McGowan, MDSanta Monica, CA 904041720015902
- Alex Messina, MDSanta Monica, CA 904041902867823
- Mark Nachman, MDSanta Monica, CA 904041104803683
Common questions
What is Joan Karen Feltman, M.D.'s NPI number?
Joan Karen Feltman, M.D.'s National Provider Identifier (NPI) is 1053418640, issued on Sep 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joan Karen Feltman, M.D. located?
The NPPES record lists a practice address at 2021 Santa Monica Blvd, Santa Monica, CA, 90404. Phone: (310) 315-0131. Providers update this record themselves, so call before visiting.
How can I verify Joan Karen Feltman, M.D.'s license?
NPPES lists California license number G23409, 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 Joan Karen Feltman, M.D. prescribe under Medicare Part D?
In 2024, Joan Karen Feltman, M.D. had 4,162 Medicare Part D claims for 413 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Joan Karen Feltman, M.D.'s MIPS final score?
The 2023 MIPS final score is 21.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.