Donald Stephen Litvak, M.D.
Specialist · Tarzana, CA
Donald Stephen Litvak, M.D. is a specialist with a practice address in Tarzana, California, and NPI 1790704344, issued on Jul 18, 2006. Check the license (California A23815, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Donald Stephen Litvak
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- A23815 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3808 Winford Dr, Tarzana, CA 91356
- Phone
- (818) 343-9802
- Enumerated
- Jul 18, 2006
- Record last updated
- May 8, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (818) 343-9804
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Verify Donald Stephen Litvak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license A23815Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average specialist in 2024
38 Medicare Part D claims, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 42% of claims.
Most prescribed
- Movantik12 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.
Donald Stephen Litvak among 5,749 specialist records in California
Donald Stephen Litvak, M.D. is one of 5,749 specialist records with a practice address in California. 30% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 60% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2015 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
29 specialist records list a practice address in Tarzana
They are 29 of the 2,122 NPPES records with a practice address in Tarzana, and 5,749 specialist records in California.
All 5,749 in California → Every provider in Tarzana → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Gil Bender, M.D.Tarzana, CA 913561821032202
- Alan Bricklin, M.D.Tarzana, CA 913561073539102
- Thomas Ence, M.D.Tarzana, CA 913561497779508
- George Fischmann, M.D.Tarzana, CA 913561437187176
- Paul Kasnitz, M.D.Tarzana, CA 913561477574580
- Kenneth Kleinman, M.D.Tarzana, CA 913561689605941
- Zahi Nassoura, MDTarzana, CA 913561417995622
- James Ong, M.D.Tarzana, CA 913561912955980
Common questions
What is Donald Stephen Litvak, M.D.'s NPI number?
Donald Stephen Litvak, M.D.'s National Provider Identifier (NPI) is 1790704344, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Donald Stephen Litvak, M.D. located?
The NPPES record lists a practice address at 3808 Winford Dr, Tarzana, CA, 91356. Phone: (818) 343-9802. Providers update this record themselves, so call before visiting.
How can I verify Donald Stephen Litvak, M.D.'s license?
NPPES lists California license number A23815, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Donald Stephen Litvak, M.D. prescribe under Medicare Part D?
In 2024, Donald Stephen Litvak, M.D. had 38 Medicare Part D claims; the average among specialist prescribers was 1,380. 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.