Quick answers
- Does Marie S. Obrien accept Medicare assignment?
- Yes. Medicare's clinician data says Marie S. Obrien 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 Marie S. Obrien see?
- In 2024, CMS data shows 491 Original Medicare patients and 16,274 services for Marie S. Obrien. This counts Original Medicare only and measures volume, not quality.
- What is Marie S. Obrien's NPI number?
- 1083836464. 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 Marie S. Obrien, 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 | 491 |
|---|---|
| Services billed to Medicare | 16,274 |
| Different services or procedures | 52 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Injection, certolizumab pegol, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) (J0717)10,200 services
- Injection, denosumab, 1 mg (J0897)2,520 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)476 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)374 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)65 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%
- Arthritis75%
- High blood pressure70%
- Osteoporosis38%
- Anxiety29%
- Chronic kidney disease28%
Hospitals where Marie S. Obrien works
Medicare's Facility Affiliation Data lists Marie S. Obrien 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 - HazletonHazleton, PA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 390185
- Lehigh Valley Hospital - PoconoEast Stroudsburg, PA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 390201
- Schuylkill Medical Center - South Jackson StreetPottsville, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390030
- St Lukes HospitalBethlehem, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390049
Practice locations
Addresses where Marie S. Obrien is enrolled with Medicare (CMS data updated October 2, 2026).
- 2000 Westinghouse Dr, Suite 200Cranberry Twp, PA 16066
- 3080 Hamilton Blvd, Suite 300Allentown, PA 18103 (610) 776‑5038
- 400 N 17th StAllentown, PA 18104
Group practices
Medicare enrollment lists Marie S. Obrien as a member of these groups (CMS data updated October 2, 2026).
- Phoenix Rehabilitation and Health Services Inc2,800 clinicians in the group
- Lehigh Valley Physician Group2,542 clinicians in the group
- Valley Health Partners Community Health Center120 clinicians in the group
Specialties
- Rheumatologyprimary
- Internal Medicinealso
Other rheumatologists in Cranberry Twp
Clinicians with the same Medicare primary specialty in Cranberry Twp, PA — not a recommendation.
Other clinicians in Phoenix Rehabilitation and Health Services Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Philadelphia College Of Osteopathic Medicine |
| Graduation year | 2002 (24 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) | 1083836464 |
| 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