Provider Profile
Stefan Christison
Unclaimed ProfileAbout Stefan Christison
Based in Portland, OR, Stefan Christison is listed in the NPI registry under internal medicine. Medicare claims data shows Stefan provided 308 services to 198 patients. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes, and hospital discharge day management, more than 30 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
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
- (503) 413-5542
- Email not available
Practice Locations
1120 NW 20TH AVE STE 110
Portland, OR 97209
2800 N Vancouver Ave Suite 230
Portland, OR 97227
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Most searched procedures
Preventive and evaluation
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
Digestive
Exams & Consultations
Heart & Circulation
Heart health
Imaging referral
Immunizations
Lab tests
Lungs & Breathing
Metabolic & Weight
Minor procedures
Office procedures
Office Procedures
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
Procedures Most Often Billed to Medicare
308 services · 198 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
138 | As often as other peers in Internal Medicine |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
51 | As often as other peers in Internal Medicine |
| Hospital discharge day management, more than 30 minutes | Office visit | 99239 |
37 | |
| Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by t | Billing code | G0316 |
33 | As often as other peers in Internal Medicine |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
33 | |
| Critical care, first 30-74 minutes | Office visit | 99291 |
16 |
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.
Other internists in Portland 8
Same specialty, same city.
Trained at Other 7
Other providers in the same specialty who trained at the same institution.
Class of 2016 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Stefan Christison specialize in?
Stefan Christison is an internist in Portland, OR. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Stefan Christison located?
Stefan Christison is listed at 1120 Nw 20Th Ave Ste 110, Portland, OR 97209. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Stefan Christison's phone number?
The number on file is (503) 413-5542. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Stefan Christison?
Stefan Christison's National Provider Identifier is 1639586191. 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 Stefan Christison train?
Stefan Christison attended Other, graduating in 2016. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Stefan Christison have?
Stefan Christison has 10 years experience. Calculated from a graduation year of 2016, reported in the CMS National Downloadable File.
CMS public data
What does Stefan Christison do most often?
According to Medicare billing data, Stefan Christison 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 Stefan Christison's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Stefan Christison. 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.