Physician Profile
Sonja Kassuba, MD
Unclaimed ProfileAbout Dr. Kassuba
Sonja Kassuba, MD is a healthcare provider in Oakland, CA specializing in hospice & palliative medicine. Sonja is also listed as specializing in internal medicine. According to Medicare claims data, the services billed most often include residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (510) 869-8373
- Email not available
Practice Locations
350 HAWTHORNE AVE RM 2346
Oakland, CA 94609
2450 Ashby Ave Room 5505
Berkeley, CA 94705
2001 Dwight Way
Berkeley, CA 94704
2450 Ashby Ave Rm 5505
Berkeley, CA 94705
Procedures Most Often Billed to Medicare
26 services · 11 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes | Office visit | 99350 |
26 | Less often than most peers in Hospice & Palliative Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other hospice & palliative medicines in Oakland 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1988 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Kassuba specialize in?
Dr. Kassuba is a hospice & palliative medicine in Oakland, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dr. Kassuba located?
Dr. Kassuba is listed at 350 Hawthorne Ave Rm 2346, Oakland, CA 94609. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Kassuba's phone number?
The number on file is (510) 869-8373. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Kassuba?
Dr. Kassuba's National Provider Identifier is 1801844881. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Kassuba go to medical school?
Dr. Kassuba attended Other, graduating in 1988. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Kassuba have?
Dr. Kassuba has 38 years experience. Calculated from a graduation year of 1988, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Kassuba do most often?
According to Medicare billing data, Dr. Kassuba the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Kassuba's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Kassuba. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.