Mark Biscow, MD
NPI 1871510354 · Internal Medicine Physician · Santa Monica, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Biscow, MD is a Internal Medicine Physician provider in Santa Monica, CA (NPI 1871510354).
Provider details
- NPI number
- 1871510354
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G049268 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
591 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 91 | $131 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 53 | $3 |
| Manual Urinalysis Test With Examination Using Microscope, Non-Automated81000 | 48 | $4 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 47 | $8 |
| Thyroxine (thyroid Chemical), Free84439 | 44 | $9 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 44 | $16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 55 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 149 | 43 |
| Rosuvastatin Calcium | 135 | 42 |
| Levothyroxine Sodium | 93 | 25 |
| Montelukast Sodium | 81 | 22 |
| Levothyroxine Sodiumbrand: Synthroid | 65 | 16 |
| Losartan Potassium | 56 | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-17
- Last updated
- 2010-01-26
Frequently asked questions
- What is Mark Biscow's NPI number?
- Mark Biscow's National Provider Identifier (NPI) is 1871510354, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Biscow's specialty?
- Mark Biscow is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Biscow located?
- Mark Biscow's practice location on file with NPPES is 2121 Wilshire Blvd, Santa Monica, CA 90403.
- What is Mark Biscow's phone number?
- The practice phone number listed in the NPPES registry for Mark Biscow is (310) 264-0065.
- Does Mark Biscow accept Medicare?
- Mark Biscow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Biscow's NPI active?
- Yes — Mark Biscow's NPI (1871510354) is active in the NPPES registry as of the last update on 2010-01-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.