Quick answers
- Does Jack H. Freimann Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says Jack H. Freimann Jr. 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 Jack H. Freimann Jr. see?
- In 2024, CMS data shows 190 Original Medicare patients and 8,677 services for Jack H. Freimann Jr.. This counts Original Medicare only and measures volume, not quality.
- What is Jack H. Freimann Jr.'s NPI number?
- 1306953021. 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 Jack H. Freimann Jr., 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 | 190 |
|---|---|
| Services billed to Medicare | 8,677 |
| Different services or procedures | 54 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)173 services
- Insertion of needle into vein for collection of blood sample (36415)104 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)55 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)39 services
- Administration of chemotherapy into vein, 1 hour or less (96413)30 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 cholesterol75%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)47%
- Arthritis45%
- Diabetes44%
- Chronic kidney disease34%
Hospitals where Jack H. Freimann Jr. works
Medicare's Facility Affiliation Data lists Jack H. Freimann Jr. 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.
- PIH Health Downey HospitalDowney, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050393
- PIH Health Hospital-WhittierWhittier, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050169
Practice locations
Addresses where Jack H. Freimann Jr. is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.
- 11500 Brookshire AveDowney, CA 90241 (562) 904‑5000
- 12214 Lakewood Blvd, Suite 110Downey, CA 90242 (562) 904‑4430
- 12401 Washington BlvdWhittier, CA 90602 (562) 698‑0811
- 12401 Washington Blvd, Suite 100Whittier, CA 90602 (562) 967‑2885
- 12462 Putnam StWhittier, CA 90602 (562) 789‑5430
Group practices
Medicare enrollment lists Jack H. Freimann Jr. as a member of this group (CMS data updated October 2, 2026).
- PIH Health Physicians622 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in PIH Health Physicians
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1306953021 |
| 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