Quick answers
- Does Monika Mahajan accept Medicare assignment?
- Yes. Medicare's clinician data says Monika Mahajan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Monika Mahajan see?
- In 2024, CMS data shows 402 Original Medicare patients and 1,126 services for Monika Mahajan. This counts Original Medicare only and measures volume, not quality.
- What is Monika Mahajan's NPI number?
- 1255354866. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Monika Mahajan, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 402 |
|---|---|
| Services billed to Medicare | 1,126 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)461 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)259 services
- Administration of influenza virus vaccine (G0008)60 services
- Influenza vaccine split virus, preservative free (90662)55 services
- Transitional care management services for problem of at least moderate complexity (99495)37 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure69%
- Arthritis45%
- Anxiety32%
- Diabetes23%
- Osteoporosis23%
Hospitals where Monika Mahajan works
Medicare's Facility Affiliation Data lists Monika Mahajan at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Lehigh Valley HospitalAllentown, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390133
- Lehigh Valley Hospital - MacungieMacungie, PA · Acute Care Hospital · Emergency services: listed by Medicare · CCN 390430
- St Luke's Miners Memorial HospitalCoaldale, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390183
- St Lukes HospitalBethlehem, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390049
Practice locations
Addresses where Monika Mahajan is enrolled with Medicare (CMS data updated October 2, 2026).
- 1230 S Cedar Crest Blvd, 201 Lvpg Internal MedicineAllentown, PA 18103 (610) 402‑8950
- 7 S New St, Suite 1Nazareth, PA 18064 (610) 755‑8634
Group practices
Medicare enrollment lists Monika Mahajan as a member of these groups (CMS data updated October 2, 2026).
- Lehigh Valley Physician Group2,542 clinicians in the group
- H2 Rehabilitation Extension Services LLC163 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Allentown
Clinicians with the same Medicare primary specialty in Allentown, PA — not a recommendation.
Other clinicians in Lehigh Valley Physician Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1993 (33 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1255354866 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians