Dr. Mark Howard Biscow, MD
- Medicare services, 2024
- 591
- Medicare patients, 2024
- 100
- Part D claims, 2024
- 2,185
- Industry payments
- $1,119
- Affiliated sites
- 1
- Practice address
- 2121 Wilshire Blvd Suite 304 Suite 304, Santa Monica, CA 90403-5743
- Practice phone
- Call (310) 829-7762
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Westside Internal Medicine
Primary care practice · Santa Monica, California
Find Dr. Biscow's professional email, personal email and mobile number
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Dr. Mark Howard Biscow is an internist in Los Angeles, California
Dr. Biscow practices at Westside Internal Medicine in Santa Monica, California.
Dr. Biscow's NPI, 1871510354, was assigned on July 17, 2006. Dr. Biscow graduated from David Geffen School of Medicine at UCLA in 1981. Dr. Biscow holds California license G049268.
- NPI
- 1871510354NPI Registry (opens in a new tab)
- NPI enumeration date
- July 17, 2006
- NPI status
- Active
- Practice phone
- (310) 829-7762
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Howard Biscow practices in Santa Monica and Los Angeles
Dr. Biscow's primary practice is Westside Internal Medicine, at 2121 Wilshire Blvd Suite 304 Suite 304, Santa Monica, CA 90403-5743. The practice phone is (310) 829-7762. The NPI Registry lists Dr. Biscow's practice address as 757 Westwood Plz, Los Angeles, CA 90095.
- Westside Internal MedicinePrimary2121 Wilshire Blvd Suite 304 Suite 304, Santa Monica, CA 90403-5743Phone(310) 829-7762
- NPI Registry address757 Westwood Plz, Los Angeles, CA 90095 · Los Angeles CountyPhone(310) 264-0065
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Mark Howard Biscow is affiliated with 1 site of care and 1 medical group
Dr. Biscow's primary practice is Westside Internal Medicine in Santa Monica, California. The medical group on file is Westside Internal Medicine.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Mark Howard Biscow's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Biscow practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Westside Internal Medicine | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Howard Biscow is one of 16,751 internists in California
Internal medicine is Dr. Biscow's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Biscow is board certified in internal medicine by the American Board of Internal Medicine. Dr. Biscow is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute skin infection, aneurysm, ankle or foot injury, atrial fibrillation and flutter, bronchitis, chronic anemia, chronic diabetes and chronic hypertension among the conditions Dr. Biscow treats.
Internists near Dr. Biscow
Counts of internists 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. Mark Howard Biscow billed Medicare for 591 services in 2024
CMS data shows 591 Medicare services from Dr. Biscow across 14 procedure codes in 2024, for 100 Medicare patients. Medicare paid $9,927 for them. Every service was in an office.
Dr. Biscow's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 1,4332024: 43270%
- Office and hospital visits
- 2023: 4072024: 9178%
- Surgery
- 2023: 1772024: 5370%
- Other services
- 2023: 1142024: 1587%
- Imaging
- 2023: 512024: 0100%
- Tests and treatments
- 2023: 1352024: 0100%
Dr. Biscow compared with the California median for internists, 2024
- Dr. Biscow
- California median
- Medicare services
- 591vs 36164% above
- Medicare patients
- 100vs 15134% below
- Part D claims
- 1,628vs 4213.9 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Biscow's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Biscow?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Biscow and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Howard Biscow treated 100 Medicare patients in 2024, average age 76
CMS counts 100 Medicare patients who saw Dr. Biscow in 2024. The largest group is 65 to 74, with 46 patients. 75% of them have high cholesterol, and 53% have high blood pressure. Their average risk score is 0.75, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Biscow's median patient age at 75, with 52% women.
Dr. Biscow's Medicare patients by age, 2024
Dr. Biscow's Medicare patients by sex, 2024
- Women5252%
- Men4848%
Chronic conditions among Dr. Biscow's Medicare patients, 2024
- High cholesterol75%
- High blood pressure53%
- Arthritis44%
- Ischemic heart disease26%
- Cancer20%
- Osteoporosis20%
- Diabetes15%
- Atrial fibrillation14%
Share of Medicare patients with each condition. A patient can have several.
Dr. Biscow's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women52%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark Howard Biscow wrote 2,185 Medicare Part D claims in 2024
In 2024, Dr. Biscow wrote 2,185 Medicare Part D claims for 232 patients. 82% of them were for generic drugs. CMS names the drug for 1,628 of them, across 55 drugs with 11 or more claims each, at $126,118 in total drug cost. In 2023, CMS named 2,956 claims across 80 drugs.
Dr. Biscow's Part D claims by kind of drug, 2024
- Generic1,792 claims82%
- Brand-name374 claims17%
- Other19 claims1%
Dr. Biscow'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. Biscow's Part D claims, 2024
- Opioids1%16 of 2,185 claims
- Antibiotics2%44 of 2,185 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: 2,9562024: 1,62845%
Drugs named by CMS: 55 in 2024, 80 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
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Dr. Mark Howard Biscow received $1,119 in industry payments from 2016 to 2023
CMS Open Payments shows 55 general payments to Dr. Biscow from 20 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $192.
General payments to Dr. Biscow by program year, 2016 to 2023
Companies that paid Dr. Biscow the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark Howard Biscow graduated from David Geffen School of Medicine at UCLA
Dr. Biscow graduated from David Geffen School of Medicine at UCLA in 1981.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark Howard Biscow'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Mark Howard Biscow
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. Mark Howard Biscow's NPI number?
Dr. Mark Howard Biscow's NPI number is 1871510354. It was assigned on July 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Howard Biscow?
Dr. Mark Howard Biscow is an internist in Los Angeles, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Mark Howard Biscow practice?
Dr. Biscow practices at 2121 Wilshire Blvd Suite 304 Suite 304, Santa Monica, CA 90403-5743. Dr. Biscow also practices at 757 Westwood Plz, Los Angeles, CA 90095. Dr. Biscow's primary practice is Westside Internal Medicine in Santa Monica, California.
What is Dr. Mark Howard Biscow's office phone number?
The practice phone on file for Dr. Biscow is (310) 829-7762.
What is Dr. Mark Howard Biscow's medical license number?
Dr. Biscow holds California license G049268.
What medical group is Dr. Mark Howard Biscow part of?
Dr. Biscow is linked to Westside Internal Medicine.
Does Dr. Mark Howard Biscow accept Medicare?
Yes. CMS data shows Dr. Biscow billed Medicare for 591 services in 2024.
How many Medicare patients does Dr. Mark Howard Biscow see?
CMS counts 100 Medicare patients who saw Dr. Biscow in 2024, with an average age of 76.
Is Dr. Mark Howard Biscow board certified?
Yes. Dr. Biscow is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Mark Howard Biscow bill to Medicare?
In 2024, Dr. Biscow's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and lab and pathology test (81000).
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Where did Dr. Mark Howard Biscow go to medical school?
Dr. Biscow graduated from David Geffen School of Medicine at UCLA in 1981.
What drugs does Dr. Mark Howard Biscow prescribe most?
In 2024 Medicare Part D data, Dr. Biscow's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Levothyroxine Sodium.
Has Dr. Mark Howard Biscow received payments from drug or device companies?
CMS Open Payments shows $1,119 in general payments to Dr. Biscow from 20 companies from 2016 to 2023. The largest total came from Amgen Inc.
How long has Dr. Mark Howard Biscow been practicing?
Dr. Biscow graduated from medical school in 1981, 45 years ago.
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