Michael M. Koshak, MD
Family Medicine Physician · North Hollywood, CA
Michael M. Koshak, MD is a family medicine physician with a practice address in North Hollywood, California, and NPI 1689680696, issued on Jul 31, 2006. Check the license (California A36588, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael M. Koshak
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A36588 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11631 Victory Blvd, North Hollywood, CA 91606
- Phone
- (818) 764-8838
- Enumerated
- Jul 31, 2006
- Record last updated
- Oct 24, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (818) 432-2238
- Medicare enrollment
- Enrolled (PECOS I20051110000883); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
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A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael M. Koshak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A36588Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average family medicine physician in 2024
786 Medicare Part D claims for 114 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 38 claims were for opioids.
Most prescribed
- Losartan Potassium56 claims
- Amlodipine Besylate49 claims
- Atorvastatin Calcium41 claims
- Albuterol Sulfate Hfa38 claims
- Alprazolam38 claims
- Gabapentin25 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: $35.42
2 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 55,478 providers of this specialty with any payment received $902.55 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.
Michael M. Koshak among 17,133 family medicine physician records in California
Michael M. Koshak, MD is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1976 · median 2005 among the 10,652 with a school on file
- Record last updated2013 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in California
There are 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in North Hollywood → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Armine ManukyanNorth Hollywood, CA 916061245705953
- Charlotte Margolin, MDNorth Hollywood, CA 916061841325065
- Liliya Munoz, FNPNorth Hollywood, CA 916061346076007
- Nesyah ShaestehNorth Hollywood, CA 916061205240017
- Shant ThomassianNorth Hollywood, CA 916061902546807
- Shahab Banayan, MDNorth Hollywood, CA 916051992962534
- Lazaro Chapa, M.D.North Hollywood, CA 916051902943558
- Vannithamby Jegapragasan, MDNorth Hollywood, CA 916071811072978
Common questions
What is Michael M. Koshak, MD's NPI number?
Michael M. Koshak, MD's National Provider Identifier (NPI) is 1689680696, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael M. Koshak, MD located?
The NPPES record lists a practice address at 11631 Victory Blvd, North Hollywood, CA, 91606. Phone: (818) 764-8838. Providers update this record themselves, so call before visiting.
How can I verify Michael M. Koshak, MD's license?
NPPES lists California license number A36588, 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 Michael M. Koshak, MD prescribe under Medicare Part D?
In 2024, Michael M. Koshak, MD had 786 Medicare Part D claims for 114 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.