Mark Krasnoff, M.D.
NPI 1821016064 · Internal Medicine Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Krasnoff, M.D. is a Internal Medicine Physician provider in Saint Louis, MO (NPI 1821016064).
Provider details
- NPI number
- 1821016064
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD114791 (MO)
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
847 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 | 501 | $93 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 247 | $124 |
| Transitional Care Management Services for Problem of at Least Moderate Complexity99495 | 30 | $134 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 22 | $138 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 17 | $8 |
| Initial Preventive Physical Examination; Face-To-Face Visit, Services Limited to New Beneficiary During the First 12 Months of Medicare Enrollment |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 166 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 532 | 151 |
| Amlodipine Besylate | 508 | 163 |
| Atorvastatin Calcium | 481 | 155 |
| Levothyroxine Sodium | 333 | 89 |
| Losartan Potassium | 326 | 96 |
| Metoprolol Succinate | 309 | 89 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-17
- Last updated
- 2020-10-23
- Certified
- 2020-10-23
Frequently asked questions
- What is Mark Krasnoff's NPI number?
- Mark Krasnoff's National Provider Identifier (NPI) is 1821016064, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Krasnoff's specialty?
- Mark Krasnoff is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Krasnoff located?
- Mark Krasnoff's practice location on file with NPPES is 1035 Bellevue Ave, Saint Louis, MO 63117-1854.
- What is Mark Krasnoff's phone number?
- The practice phone number listed in the NPPES registry for Mark Krasnoff is (314) 925-4700.
- Does Mark Krasnoff accept Medicare?
- Mark Krasnoff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Krasnoff's NPI active?
- Yes — Mark Krasnoff's NPI (1821016064) is active in the NPPES registry as of the last update on 2020-10-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.