Jack Freimann, M.D.
NPI 1306953021 · Hematology & Oncology Physician · Whittier, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jack Freimann, M.D. is a Hematology & Oncology Physician provider in Whittier, CA (NPI 1306953021).
Provider details
- NPI number
- 1306953021
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G58179 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
531 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 173 | $140 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 104 | $9 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 55 | $82 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 39 | $99 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 30 | $151 |
| Enhancing Oncology Model (eom) Monthly Enhanced Oncology Services (meos) Payment for Eom Enhanced ServicesM0010 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 55 | 24 |
| Imatinib Mesylate | 28 | — |
| Hydroxyurea | 26 | — |
| Levothyroxine Sodium | 24 | — |
| Dexamethasone | 23 | 14 |
| Letrozole | 22 | — |
| Ondansetron Hcl | 19 | 14 |
| Apixabanbrand: Eliquis |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,302 across 130 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
- 2006-08-25
- Last updated
- 2013-07-24
Frequently asked questions
- What is Jack Freimann's NPI number?
- Jack Freimann's National Provider Identifier (NPI) is 1306953021, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Freimann's specialty?
- Jack Freimann is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Jack Freimann located?
- Jack Freimann's practice location on file with NPPES is 8135 Painter Ave, Whittier, CA 90602-3158.
- What is Jack Freimann's phone number?
- The practice phone number listed in the NPPES registry for Jack Freimann is (562) 698-6888.
- Does Jack Freimann accept Medicare?
- Jack Freimann is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jack Freimann's NPI active?
- Yes — Jack Freimann's NPI (1306953021) is active in the NPPES registry as of the last update on 2013-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.