Lawrence Klein, M.D.
NPI 1477615680 · Internal Medicine Physician · Washington, DC
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lawrence Klein, M.D. is a Internal Medicine Physician provider in Washington, DC (NPI 1477615680).
Provider details
- NPI number
- 1477615680
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD14398 (DC)
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
4,756 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 394 | $8 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 336 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 321 | $10 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 262 | $134 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 248 | $16 |
| Manual Urinalysis Test With Examination Using Microscope, Automated81001 | 229 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 54 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 243 | 64 |
| Rosuvastatin Calcium | 220 | 61 |
| Amlodipine Besylate | 114 | 34 |
| Levothyroxine Sodium | 64 | 19 |
| Levothyroxine Sodiumbrand: Synthroid | 63 | 13 |
| Ezetimibe | 49 | 15 |
| Pantoprazole Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-14
- Last updated
- 2008-07-02
Frequently asked questions
- What is Lawrence Klein's NPI number?
- Lawrence Klein's National Provider Identifier (NPI) is 1477615680, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lawrence Klein's specialty?
- Lawrence Klein is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lawrence Klein located?
- Lawrence Klein's practice location on file with NPPES is 3301 New Mexico Ave Nw, Washington, DC 20016-3622.
- What is Lawrence Klein's phone number?
- The practice phone number listed in the NPPES registry for Lawrence Klein is (202) 362-4467.
- Does Lawrence Klein accept Medicare?
- Lawrence Klein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lawrence Klein's NPI active?
- Yes — Lawrence Klein's NPI (1477615680) is active in the NPPES registry as of the last update on 2008-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.