Dr. Marc J. Herskowitz, MD
- Medicare patients, 2024
- 11
- Part D claims, 2024
- 1,368
- Hospital affiliations
- 1
- Industry payments
- $80
- Medical group
- 1
- Practice address
- 5601 De Soto Avenue, Woodland Hills, CA 91367
- Practice phone
- Call (818) 719-3800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Herskowitz's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Marc J. Herskowitz is a urologist in Woodland Hills, California
Dr. Herskowitz practices at Kaiser Permanente Woodland Hills Medical Center in Woodland Hills, California, part of Kaiser Permanente.
Dr. Herskowitz's NPI, 1679644579, was assigned on November 13, 2006. Dr. Herskowitz graduated from MCP-Hahnemann College of Medicine in 1996. Dr. Herskowitz holds California license A76730.
- NPI
- 1679644579NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436112190
- NPI enumeration date
- November 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (818) 719-3800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marc J. Herskowitz practices at Kaiser Permanente Woodland Hills Medical Center in Woodland Hills, California
Dr. Herskowitz's primary practice is Kaiser Permanente Woodland Hills Medical Center, at 5601 De Soto Avenue, Woodland Hills, CA 91367 in Los Angeles County. The practice phone is (818) 719-3800.
- Kaiser Permanente Woodland Hills Medical Center5601 De Soto Avenue, Woodland Hills, CA 91367 · Los Angeles CountyPhone(818) 719-3800
Source: Dmand AI Affiliation Data
Dr. Marc J. Herskowitz is affiliated with 2 sites of care and 1 medical group
Dr. Herskowitz's primary practice is Kaiser Permanente Woodland Hills Medical Center in Woodland Hills, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Herskowitz to 1 more dialysis center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Marc J. Herskowitz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Herskowitz practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente Woodland Hills Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marc J. Herskowitz is one of 1,395 urologists in California
Urology is Dr. Herskowitz's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Herskowitz is board certified in urology by the American Board of Urology. Dr. Herskowitz is licensed in California.
Specialties and state licenses
- Urology, CaliforniaPrimary
Clinical focus
Dmand AI lists enlarged prostate transurethral surgery (TURP) and urinary endoscopy among the conditions Dr. Herskowitz treats.
Urologists near Dr. Herskowitz
Counts of urologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Marc J. Herskowitz treated 11 Medicare patients in 2024, average age 70
CMS counts 11 Medicare patients who saw Dr. Herskowitz in 2024. Their average risk score is 0.91, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Herskowitz's median patient age at 68, with 26% women.
Dr. Herskowitz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women26%
- Men74%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Marc J. Herskowitz wrote 1,368 Medicare Part D claims in 2024
In 2024, Dr. Herskowitz wrote 1,368 Medicare Part D claims for 465 patients. 97% of them were for generic drugs. CMS names the drug for 1,274 of them, across 14 drugs with 11 or more claims each, at $53,564 in total drug cost. In 2023, CMS named 1,198 claims across 13 drugs.
Dr. Herskowitz's Part D claims by kind of drug, 2024
- Generic1,323 claims97%
- Brand-name and other45 claims3%
Dr. Herskowitz's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Herskowitz's Part D claims, 2024
- Opioids2%29 of 1,368 claims
- Antibiotics13%180 of 1,368 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,1982024: 1,2746%
Drugs named by CMS: 14 in 2024, 13 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Marc J. Herskowitz offers telehealth to Medicare patients
Dr. Herskowitz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Herskowitz as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Marc J. Herskowitz received $80 in industry payments from 2024 to 2025
CMS Open Payments shows 4 general payments to Dr. Herskowitz from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Pulmonx Corporation paid the most, $56.
General payments to Dr. Herskowitz by program year, 2024 to 2025
Companies that paid Dr. Herskowitz the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Marc J. Herskowitz has 1 award and honors on record
Dmand AI lists 1 award for Dr. Herskowitz, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Herskowitz
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Marc J. Herskowitz graduated from MCP-Hahnemann College of Medicine
Dr. Herskowitz graduated from MCP-Hahnemann College of Medicine in 1996.
- Medical school
- Board certified in urology
Source: Dmand AI Professional Profile Data
Dr. Marc J. Herskowitz accepts plans from 2 insurance carriers
Dr. Herskowitz is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Herskowitz accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Marc J. Herskowitz's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Marc J. Herskowitz
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Marc J. Herskowitz's NPI number?
Dr. Marc J. Herskowitz's NPI number is 1679644579. It was assigned on November 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Marc J. Herskowitz?
Dr. Marc J. Herskowitz is a urologist in Woodland Hills, California. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Marc J. Herskowitz practice?
Dr. Herskowitz practices at 5601 De Soto Avenue, Woodland Hills, CA 91367. Dr. Herskowitz's primary practice is Kaiser Permanente Woodland Hills Medical Center in Woodland Hills, California, part of Kaiser Permanente. Dmand AI also links Dr. Herskowitz to 1 dialysis center.
What is Dr. Marc J. Herskowitz's office phone number?
The practice phone on file for Dr. Herskowitz is (818) 719-3800.
What is Dr. Marc J. Herskowitz's medical license number?
Dr. Herskowitz holds California license A76730.
Which hospitals is Dr. Marc J. Herskowitz affiliated with?
Dr. Herskowitz practices at Kaiser Permanente Woodland Hills Medical Center in Woodland Hills, California.
What medical group is Dr. Marc J. Herskowitz part of?
Dr. Herskowitz is linked to Southern California Permanente Medical Group.
Does Dr. Marc J. Herskowitz accept Medicare?
Yes. CMS lists Dr. Herskowitz as accepting Medicare assignment.
Does Dr. Marc J. Herskowitz offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Herskowitz as offering telehealth services.
How many Medicare patients does Dr. Marc J. Herskowitz see?
CMS counts 11 Medicare patients who saw Dr. Herskowitz in 2024, with an average age of 70.
Show 6 more questionsShow fewer questions
Is Dr. Marc J. Herskowitz board certified?
Yes. Dr. Herskowitz is board certified in urology by the American Board of Urology.
Where did Dr. Marc J. Herskowitz go to medical school?
Dr. Herskowitz graduated from MCP-Hahnemann College of Medicine in 1996.
What drugs does Dr. Marc J. Herskowitz prescribe most?
In 2024 Medicare Part D data, Dr. Herskowitz's most prescribed drugs by claims were Tamsulosin HCl, Finasteride and Terazosin HCl.
Has Dr. Marc J. Herskowitz received payments from drug or device companies?
CMS Open Payments shows $80 in general payments to Dr. Herskowitz from 2 companies from 2024 to 2025. The largest total came from Pulmonx Corporation.
How long has Dr. Marc J. Herskowitz been practicing?
Dr. Herskowitz graduated from medical school in 1996, 30 years ago.
What insurance does Dr. Marc J. Herskowitz accept?
Dr. Herskowitz is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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