DR. MAHER AJAM (M.D.) – Nephrology Physician, NPI 1548265135
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
269 NEPHROLOGY in IN
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Provider Addresses for DR. MAHER AJAM (M.D.)
801, MacArthur Boulevard, Munster, Lake County, Indiana, 46321, United States
SUITE 400A
MUNSTER, IN 463212915
Phone: (219) 931-5227
Fax: (219) 932-8455
Type: Mailing
9229, Taft Street, Independence Hill, Merrillville, Lake County, Indiana, 46410, United States
MERRILLVILLE, IN 464106911
Phone: (219) 769-5227
Fax: (219) 769-7355
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 53 Open Payments records for all available years, with a total value of $887.
Total Amount is formed as General ($887) + Research ($0) + Ownership ($0) = $887.
Last reported payment date: 2024-12-16 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($337).
Total Amount
$887
General + Research + Ownership
Payments
53
Total payment records
General Amount
$887
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-16
Latest reported date
Top Companies
Largest payers in this snapshot
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2005-01-12
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20050112000192 | I | Nephrology | IN | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 682 | 266 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 524 | 178 | $0 |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | 402 | 65 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 299 | 126 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 167 | 151 | $0 |
Insurance plans in this area (ZIP 46321)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEPHROLOGY | IN | 90935 | Hemodialysis procedure with one physician evaluation | 101 | 53 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| N E P H R O L O G Y | IN | |
| Nephrology, Internal Medicine | IL | |
| H O S P I T A L I S T | IL | |
| Nephrology, Internal Medicine | IN | |
| Nephrology, Internal Medicine, Neurology | IL | |
| N E P H R O L O G Y | IN | |
| Internal Medicine, Nephrology | IN | |
| Nephrology, Internal Medicine | IN | |
| Nephrology, Internal Medicine | IN |
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