Quick answers
- Does Pauline T. Phung accept Medicare assignment?
- Yes. Medicare's clinician data says Pauline T. Phung 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 Pauline T. Phung see?
- In 2024, CMS data shows 127 Original Medicare patients and 190 services for Pauline T. Phung. This counts Original Medicare only and measures volume, not quality.
- What is Pauline T. Phung's NPI number?
- 1649850207. 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 Pauline T. Phung, 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 | 127 |
|---|---|
| Services billed to Medicare | 190 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Emergency department visit with high level of medical decision making (99285)94 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)59 services
- Emergency department visit with moderate level of medical decision making (99284)17 services
- Critical care, first 30-74 minutes (99291)14 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 blood pressure75%
- High cholesterol69%
- Arthritis60%
- Diabetes53%
- Depression41%
- Chronic kidney disease39%
Hospitals where Pauline T. Phung works
Medicare's Facility Affiliation Data lists Pauline T. Phung 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.
- AHMC Anaheim Regional Medical CenterAnaheim, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050226
- Barstow Community HospitalBarstow, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050298
- California Hospital Medical Center LALos Angeles, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050149
- Providence St. Jude Medical CenterFullerton, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050168
- San Gorgonio Memorial HospitalBanning, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050054
Practice locations
Addresses where Pauline T. Phung is enrolled with Medicare (CMS data updated October 2, 2026).
- 101 E Valencia Mesa DrFullerton, CA 92835 (714) 871‑3280
- 11370 Anderson StLoma Linda, CA 92354
- 600 N Highland Springs AveBanning, CA 92220 (833) 443‑6287
- 820 E Mountain View StBarstow, CA 92311 (858) 863‑7382
Group practices
Medicare enrollment lists Pauline T. Phung as a member of these groups (CMS data updated October 2, 2026).
- Faculty Physicians and Surgeons of Llusm1,315 clinicians in the group
- MD Karan Singh Professional Corp30 clinicians in the group
- St Jude Emergency Medical Group Inc21 clinicians in the group
- Singh MD a Professional Medical19 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Fullerton
Clinicians with the same Medicare primary specialty in Fullerton, CA — not a recommendation.
Other clinicians in Faculty Physicians and Surgeons of Llusm
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Lake Erie College Of Osteopathic Medicine, Erie |
| Graduation year | 2021 (5 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649850207 |
| 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