Loreta Kalish, M.D.
Internal Medicine Physician · Walnut Creek, CA
Loreta Kalish, M.D. is an internal medicine physician with a practice address in Walnut Creek, California, and NPI 1184760423, issued on Jan 30, 2007. Check the license (California A92290, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Loreta Kalish
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A92290 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1220 Rossmoor Pkwy, Walnut Creek, CA 94595
- Phone
- (925) 939-1220
- Enumerated
- Jan 30, 2007
- Record last updated
- Sep 11, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (925) 988-7574
- Medicaid ID
- 00A922900 CA
- Medicare enrollment
- Enrolled (PECOS I20070703000708); accepts Medicare assignment
- Medical or professional school
- Kansas City University Of Physicians And Surgeons, 1980
- 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 1220 Rossmoor Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mitchell Applegate, M.D.Hospitalist Physician1093803447
- Anusha Bakshi, M.D.Internal Medicine Physician1346778909
- Christian Balzer, M.D.Internal Medicine Physician1518104892
Verify Loreta Kalish in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A92290Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average internal medicine physician in 2024
8,224 Medicare Part D claims for 683 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 12 claims were for opioids.
Most prescribed
- Atorvastatin Calcium573 claims
- Amlodipine Besylate560 claims
- Levothyroxine Sodium550 claims
- Losartan Potassium311 claims
- Gabapentin257 claims
- Trazodone Hcl201 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.
Industry payments in 2024: $965.05
38 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals 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.
Bills Medicare through one group practice
- John Muir Physician NetworkWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Loreta Kalish among 17,696 internal medicine physician records in California
Loreta Kalish, 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 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1980 · median 2004 among the 11,065 with a school on file
- Record last updated2019 · 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).
183 internal medicine physician records list a practice address in Walnut Creek
They are 183 of the 6,170 NPPES records with a practice address in Walnut Creek, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Walnut Creek → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Viviane Alfandary, M.D.Walnut Creek, CA 945951053338095
- Sukhjinder Brah, M.D.Walnut Creek, CA 945951023044559
- Lonnie Bristow, M.D.Walnut Creek, CA 945951871510529
- Smita Chandra, M.D.Walnut Creek, CA 945951811917826
- Han Kyo Chang, M.DWalnut Creek, CA 945951235127150
- Russell Everest, M.D.Walnut Creek, CA 945951528085404
- Kamal Ghei, M.D.Walnut Creek, CA 945951366490120
- Lavinia Herbei, M.D.Walnut Creek, CA 945951508834946
Common questions
What is Loreta Kalish, M.D.'s NPI number?
Loreta Kalish, M.D.'s National Provider Identifier (NPI) is 1184760423, issued on Jan 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Loreta Kalish, M.D. located?
The NPPES record lists a practice address at 1220 Rossmoor Pkwy, Walnut Creek, CA, 94595. Phone: (925) 939-1220. Providers update this record themselves, so call before visiting.
How can I verify Loreta Kalish, M.D.'s license?
NPPES lists California license number A92290, 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 Loreta Kalish, M.D. prescribe under Medicare Part D?
In 2024, Loreta Kalish, M.D. had 8,224 Medicare Part D claims for 683 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.