Syed Ahmad, MD
NPI 1659987683 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Syed Ahmad, MD is a Internal Medicine Physician provider in Chicago, IL (NPI 1659987683).
Provider details
- NPI number
- 1659987683
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 125075474 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
325 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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 180 | $173 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 54 | $79 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 49 | $130 |
| Critical Care, First 30-74 Minutes99291 | 17 | $218 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 14 | $81 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 11 |
Practice location
Mailing address
Additional practice locations (1)
- 75 Francis StBoston, MA 02115-6110Phone: (617) 732-5500
Registry dates
- Enumerated
- 2020-09-15
- Last updated
- 2025-10-06
- Certified
- 2025-10-06
Frequently asked questions
- What is Syed Ahmad's NPI number?
- Syed Ahmad's National Provider Identifier (NPI) is 1659987683, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Syed Ahmad's specialty?
- Syed Ahmad is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Syed Ahmad located?
- Syed Ahmad's practice location on file with NPPES is 2900 N Lake Shore Dr, Chicago, IL 60657-5640.
- What is Syed Ahmad's phone number?
- The practice phone number listed in the NPPES registry for Syed Ahmad is (773) 665-6730.
- Does Syed Ahmad accept Medicare?
- Syed Ahmad is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Syed Ahmad's NPI active?
- Yes — Syed Ahmad's NPI (1659987683) is active in the NPPES registry as of the last update on 2025-10-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.