Syed Ishaq, MD
NPI 1588697668 · Internal Medicine Physician · Leesburg, VA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Syed Ishaq, MD is a Internal Medicine Physician provider in Leesburg, VA (NPI 1588697668).
Provider details
- NPI number
- 1588697668
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101058320 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
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
584 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 Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 244 | $104 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 185 | $175 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 96 | $74 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 30 | $111 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 15 | $76 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 50 | 21 |
| Apixabanbrand: Eliquis | 43 | 15 |
| Amlodipine Besylate | 30 | 14 |
| Pantoprazole Sodium | 30 | 16 |
| Furosemide | 29 | 14 |
| Metoprolol Tartrate | 28 | — |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-09
- Last updated
- 2024-05-02
- Certified
- 2024-05-02
Frequently asked questions
- What is Syed Ishaq's NPI number?
- Syed Ishaq's National Provider Identifier (NPI) is 1588697668, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Syed Ishaq's specialty?
- Syed Ishaq is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Syed Ishaq located?
- Syed Ishaq's practice location on file with NPPES is 41350 Springfield Ln, Leesburg, VA 20175-8743.
- What is Syed Ishaq's phone number?
- The practice phone number listed in the NPPES registry for Syed Ishaq is (703) 973-5790.
- Does Syed Ishaq accept Medicare?
- Syed Ishaq is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Syed Ishaq's NPI active?
- Yes — Syed Ishaq's NPI (1588697668) is active in the NPPES registry as of the last update on 2024-05-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.