Lawrence Istrail, M.D.
NPI 1265814545 · Internal Medicine Physician · Falls Church, VA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lawrence Istrail, M.D. is a Internal Medicine Physician provider in Falls Church, VA (NPI 1265814545).
Provider details
- NPI number
- 1265814545
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 0101261555 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 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
896 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 646 | $125 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 215 | $123 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 35 | $186 |
Typical Medicare-allowed amounts for these services range $123–$186 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
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 |
|---|---|---|
| Metoprolol Succinate | 35 | 35 |
| Atorvastatin Calcium | 23 | 23 |
| Furosemide | 22 | 22 |
| Spironolactone | 21 | 21 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 16 | 14 |
| Nitroglycerin | 11 | 11 |
| Valsartan | 11 | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-06-23
- Last updated
- 2021-03-03
- Certified
- 2021-03-03
Frequently asked questions
- What is Lawrence Istrail's NPI number?
- Lawrence Istrail's National Provider Identifier (NPI) is 1265814545, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lawrence Istrail's specialty?
- Lawrence Istrail is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lawrence Istrail located?
- Lawrence Istrail's practice location on file with NPPES is 3300 Gallows Rd, Falls Church, VA 22042-3307.
- What is Lawrence Istrail's phone number?
- The practice phone number listed in the NPPES registry for Lawrence Istrail is (703) 776-3582.
- Does Lawrence Istrail accept Medicare?
- Lawrence Istrail is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lawrence Istrail's NPI active?
- Yes — Lawrence Istrail's NPI (1265814545) is active in the NPPES registry as of the last update on 2021-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.