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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

SYED OSAMA AHMAD MD
NPI 1659987683
Internal Medicine in Chicago, IL

Active since September 15, 2020PECOS EnrolledAccepts Medicare Assignment
2900 N LAKE SHORE DR, CHICAGO, IL 60657(773) 665-6730(773) 665-3228 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 29, 2026, Aug 31, 2026, Oct 6, 2025 and 2 more (5 updates tracked since 2020).

About Syed Osama Ahmad Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SYED OSAMA AHMAD MD (NPI 1659987683) is an individual internal medicine provider in Chicago, Illinois, licensed in Massachusetts (1014074) and active in the NPI registry since September 2020. He is enrolled in Medicare PECOS, is affiliated with Anna Jaques Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1659987683
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameSYED OSAMA AHMADCredential: MD
Location Address2900 N LAKE SHORE DRChicago, IL 60657-5640
Mailing AddressPo Box 415348Boston, MA 02241-5348 · (800) 225-8885 · Fax (508) 334-1977
Phone(773) 665-6730
Fax(773) 665-3228
Sole ProprietorYes
Medical School CMSOtherGraduated 2019
Enumeration DateSeptember 15, 2020
Last NPPES UpdateSeptember 29, 20265 updates tracked since enumeration
NPPES CertifiedSeptember 29, 2026
✔ NPI 1659987683 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in MA · 1014074✔ Licensed in IL · 036163816
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
2900 N LAKE SHORE DR, Chicago, IL 60657
Open in Google Maps ↗

Secondary Practice Locations 2

Location 160 Hospital RdLeominster, MA 01453-2205 · Phone (978) 466-4169 · Fax (978) 466-4017
Location 275 Francis StBoston, MA 02115-6110 · Phone (617) 732-5500

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Taro Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Syed Osama Ahmad Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4789040452
PECOS Enrollment IDI20230523000772
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

10

Medicare enrollment records show Syed Ahmad reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cep America-Illinois Hospitalists
122 mi
Hospitalist
2200 E WASHINGTON ST
Bloomington, IL 61701
  • Reassigned Medicare billing, Illinois enrollment
  • 329 clinicians in this Medicare group
NPI 1669276523 (309) 662-3311
Osf Multi-Specialty Group
132 mi
Internal Medicine
8600 N STATE ROUTE 91
Peoria, IL 61615
  • Reassigned Medicare billing, Illinois enrollment
  • 2,944 clinicians in this Medicare group
NPI 1154908929 (309) 683-5050
Berkshire Medical Center, Inc
738 mi
General Acute Care Hospital
725 NORTH ST
Pittsfield, MA 01201
  • Reassigned Medicare billing, Massachusetts enrollment
  • 394 clinicians in this Medicare group
NPI 1295765261 (413) 447-2000
Lowell General Inpatient Specialists PLLC
835 mi
Internal Medicine
295 VARNUM AVE
Lowell, MA 01854
  • Reassigned Medicare billing, Massachusetts enrollment
  • 109 clinicians in this Medicare group
NPI 1649626391 (978) 937-6439
Lawrence General Hospital
842 mi
Radiology, Mammography
147 PELHAM ST
Methuen, MA 01844
  • Reassigned Medicare billing, Massachusetts enrollment
  • 258 clinicians in this Medicare group
NPI 1922514744 (978) 946-8425
Community Medical Associates, Inc.
845 mi
Family Medicine
25 MARSTON ST STE 301
Lawrence, MA 01841
  • Reassigned Medicare billing, Massachusetts enrollment
  • 305 clinicians in this Medicare group
NPI 1144544040 (978) 683-4000
Brigham & Womens Physicians Organization Inc
848 mi
Internal Medicine
75 FRANCIS ST
Boston, MA 02115
  • Reassigned Medicare billing, Massachusetts enrollment
  • 4,574 clinicians in this Medicare group
NPI 1033535497 (617) 732-5500
Dana-Farber Cancer Institute, Inc.
848 mi
Special Hospital
75 FRANCIS ST
Boston, MA 02115
  • Reassigned Medicare billing, Massachusetts enrollment
  • 531 clinicians in this Medicare group
NPI 1346433257 (617) 635-6904
Lifespan Physician Group Of Massachusetts Inc
850 mi
Family Medicine
2007 BAY ST
Taunton, MA 02780
  • Reassigned Medicare billing, Massachusetts enrollment
  • 547 clinicians in this Medicare group
NPI 1235957713 (774) 409-2009
Mass General Brigham Medical Group Northern Massachusetts Inc
858 mi
Emergency Medicine
81 HIGHLAND AVE
Salem, MA 01970
  • Reassigned Medicare billing, Massachusetts enrollment
  • 994 clinicians in this Medicare group
NPI 1588606123 (978) 354-4173

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
180 services177 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
54 services39 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
49 services49 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
17 services15 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
14 services14 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
11 services11 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Anna Jaques Hospital

Acute Care Hospitals · Newburyport, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220029
Location25 Highland AvenueNewburyport, MA 01950 · Essex County
Emergency services Birthing friendly

Lowell General Hospital

Acute Care Hospitals · Lowell, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220063
Location295 Varnum AvenueLowell, MA 01854 · Middlesex County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60657 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MAX JESUS BUSTILLO OROZCO MD
Student in an Organized Health Care Education/Training Program
2900 N LAKE SHORE DR
CHICAGO, IL 60657
Cook County (773) 665-3000
ROBERTA LUSKIN-HAWK MD
Internal Medicine (Infectious Disease)
2900 N LAKE SHORE DR
CHICAGO, IL 60657
Cook County (773) 665-3261
DR. SANDRA SOLOMON M.D.
Pain Medicine (Interventional Pain Medicine)
2900 N LAKE SHORE DR
CHICAGO, IL 60657
Cook County (773) 665-3000
DR. ILANA SCHIFFMAN M.D.
Family Medicine
2900 N LAKE SHORE DR
CHICAGO, IL 60657
Cook County (773) 665-3000
NEAL FRANCIS DAVIS-RUPERTO AUD
Audiologist
2900 N LAKE SHORE DR
CHICAGO, IL 60657
Cook County (773) 665-3184
SHADI JAFARIAN RD, LDN
Dietitian, Registered
2900 N LAKE SHORE DR, CLINICAL NUTRITION SERVICES
CHICAGO, IL 60657
Cook County (773) 665-3306
AHSANA ANJUM ISLAM DPM
Student in an Organized Health Care Education/Training Program
2900 N LAKE SHORE DR
CHICAGO, IL 60657
Cook County (773) 665-3000
DR. YANIRA LAGOS ESCOTO MD
Internal Medicine
2900 N LAKE SHORE DR
CHICAGO, IL 60657
Cook County (773) 665-6730

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Syed Ahmad's NPI number?

The NPI number for Syed Ahmad is 1659987683. It was assigned to this individual provider in the NPPES registry on September 15, 2020.

Where is Syed Ahmad located?

Syed Ahmad practices at 2900 N Lake Shore Dr, Chicago, IL 60657. The listed phone number is (773) 665-6730.

What is Syed Ahmad's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Syed Ahmad enrolled in Medicare?

Yes. Syed Ahmad is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Syed Ahmad's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Syed Ahmad reassigns Medicare benefits to 10 organizations: Cep America-Illinois Hospitalists (Bloomington, IL), Osf Multi-Specialty Group (Peoria, IL), Berkshire Medical Center, Inc (Pittsfield, MA), Lowell General Inpatient Specialists PLLC (Lowell, MA), Lawrence General Hospital (Methuen, MA) and 5 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Syed Ahmad's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Syed Ahmad accept?

Health plans from Taro Health list Syed Ahmad as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Syed Ahmad affiliated with any hospitals?

According to CMS data, Syed Ahmad is affiliated with Anna Jaques Hospital and Lowell General Hospital.

When was this NPI record last updated?

The NPPES record for Syed Ahmad was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.