Lawrence Schainker, MD
NPI 1790781888 · Rheumatology Physician · Rockville, MD
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lawrence Schainker, MD is a Rheumatology Physician provider in Rockville, MD (NPI 1790781888).
Provider details
- NPI number
- 1790781888
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- D0014459 (MD)
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
20 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
512 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 | 118 | $141 |
| Limited Ultrasound Scan of Joint Or Other Extremity Structure Except Blood Vessels76882 | 99 | $71 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 53 | $114 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 48 | $9 |
| Complete Ultrasound Scan of Joint76881 | 47 | $59 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 49 | 20 |
| Prednisone | 36 | 12 |
| Methotrexate Sodiumbrand: Methotrexate | 35 | 13 |
| Alendronate Sodium | 32 | — |
| Allopurinol | 15 | — |
| Lidocaine | 14 | — |
| Celecoxib | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-23
- Last updated
- 2012-05-16
Frequently asked questions
- What is Lawrence Schainker's NPI number?
- Lawrence Schainker's National Provider Identifier (NPI) is 1790781888, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lawrence Schainker's specialty?
- Lawrence Schainker is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Lawrence Schainker located?
- Lawrence Schainker's practice location on file with NPPES is 1201 Seven Locks Rd, Rockville, MD 20854-2957.
- What is Lawrence Schainker's phone number?
- The practice phone number listed in the NPPES registry for Lawrence Schainker is (301) 762-5020.
- Does Lawrence Schainker accept Medicare?
- Lawrence Schainker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lawrence Schainker's NPI active?
- Yes — Lawrence Schainker's NPI (1790781888) is active in the NPPES registry as of the last update on 2012-05-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.