MARK HOWARD BISCOW MD
NPI 1871510354
Internal Medicine in Santa Monica, CA

Active since July 17, 2006PECOS Enrolled
2121 WILSHIRE BLVD, #305, SANTA MONICA, CA 90403(310) 264-0065(310) 829-3424 Get Directions Write a Review

NPPES record last updated: January 26, 2010. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Mark Howard Biscow Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK HOWARD BISCOW MD (NPI 1871510354) is an individual internal medicine provider in Santa Monica, California, licensed in California (G049268) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1871510354
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMARK HOWARD BISCOWCredential: MD
Location Address2121 WILSHIRE BLVD, #305Santa Monica, CA 90403
Mailing Address2121 Wilshire Blvd, #304Santa Monica, CA 90403 · (310) 264-0065 · Fax (310) 829-0765
Fax(310) 829-3424
Sole ProprietorNo
Enumeration DateJuly 17, 2006
Last NPPES UpdateJanuary 26, 2010
✔ NPI 1871510354 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G049268
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
2121 WILSHIRE BLVD, Santa Monica, CA 90403

Other Identifiers 2

Medicare UPINA51315
Medicare ID-Type UnspecifiedWG49268BCA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark Howard Biscow Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Mark Biscow reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Internal Medicine
2121 WILSHIRE BLVD, # 304
Santa Monica, CA 90403
  • Reassigned Medicare billing, California enrollment
  • 9 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 14

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
91 services78 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
53 services51 patients
Manual urinalysis test with examination using microscope, non-automated 81000
A manual urinalysis test involves studying a urine sample under a microscope. This non-automated method helps identify any abnormal substances present. It's a useful tool for detecting potential health concerns early. The process is simple and non-invasive.
48 services45 patients
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025
A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.
47 services46 patients
Thyroxine (thyroid chemical), free 84439
The Thyroxine (thyroid chemical), free test is a blood test that measures the level of free T4 in your body. T4 is a hormone produced by your thyroid gland and is essential for growth and metabolism. If your T4 levels are too high or too low, it could indicate a thyroid disorder.
44 services44 patients
Blood test, thyroid stimulating hormone (tsh) 84443
A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.
44 services44 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90403 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 7

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
4 suppliers16 claims29 services$6.14 avg. paid by Medicare
Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
4 suppliers11 claims11 services$29.12 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
4 suppliers20 claims76 services$14.97 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
4 suppliers15 claims15 services$46.02 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
3 suppliers19 claims70 services$1.39 avg. paid by Medicare
Continuous positive airway pressure (cpap) device E0601
DME-Other DME · category DE001N
1 supplier13 claims13 services$28.28 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Family Medicine
2121 WILSHIRE BLVD, SUITE 306
SANTA MONICA, CA 90403
Podiatrist
2121 WILSHIRE BLVD, STE 101
SANTA MONICA, CA 90403
Anesthesiology
2121 WILSHIRE BLVD
SANTA MONICA, CA 90403
Internal Medicine
2121 WILSHIRE BLVD, #306
SANTA MONICA, CA 90403
Clinic/Center (Ambulatory Surgical)
2121 WILSHIRE BLVD, SUITE 201
SANTA MONICA, CA 90403
Surgery
2121 WILSHIRE BLVD, #302
SANTA MONICA, CA 90403
Dietitian, Registered
2121 WILSHIRE BLVD, STE 302
SANTA MONICA, CA 90403
Anesthesiology
2121 WILSHIRE BLVD, 201
SANTA MONICA, CA 90403

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Biscow's NPI number?

The NPI number for Mark Biscow is 1871510354. It was assigned to this individual provider in the NPPES registry on July 17, 2006.

Where is Mark Biscow located?

Mark Biscow practices at 2121 Wilshire Blvd #305, Santa Monica, CA 90403. The listed phone number is (310) 264-0065.

What is Mark Biscow's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mark Biscow enrolled in Medicare?

Yes. Mark Biscow is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mark Biscow's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Biscow reassigns Medicare benefits to Westside Internal Medicine (Santa Monica, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Biscow's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mark Biscow was last updated on January 26, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.