Maher Ajam, M.D.
NPI 1548265135 · Nephrology Physician · Merrillville, IN
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maher Ajam, M.D. is a Nephrology Physician provider in Merrillville, IN (NPI 1548265135).
Provider details
- NPI number
- 1548265135
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 01035956A (IN)
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 tenure25% of score
21 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,208 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 717 | $101 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 487 | $68 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 323 | $304 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 311 | $101 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 181 | $149 |
| Critical Care, First 30-74 Minutes99291 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 49 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 164 | 62 |
| Atorvastatin Calcium | 130 | 39 |
| Carvedilol | 117 | 39 |
| Furosemide | 97 | 40 |
| Lisinopril | 89 | 32 |
| Dapagliflozin Propanediolbrand: Farxiga | 85 | 16 |
| Allopurinol | 84 | 24 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$515 across 32 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-20
- Last updated
- 2014-02-14
Frequently asked questions
- What is Maher Ajam's NPI number?
- Maher Ajam's National Provider Identifier (NPI) is 1548265135, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maher Ajam's specialty?
- Maher Ajam is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Maher Ajam located?
- Maher Ajam's practice location on file with NPPES is 9229 Taft St, Merrillville, IN 46410-6911.
- What is Maher Ajam's phone number?
- The practice phone number listed in the NPPES registry for Maher Ajam is (219) 769-5227.
- Does Maher Ajam accept Medicare?
- Maher Ajam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maher Ajam's NPI active?
- Yes — Maher Ajam's NPI (1548265135) is active in the NPPES registry as of the last update on 2014-02-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.