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Edit this profileAt a glance
- 5622 Se 41St Ave, Portland, OR 97202
About Dr. Denker
John Denker, M.D. practices general practice in Portland, OR. John is a 1980 graduate of Oregon Health Sciences University School of Medicine. John is also listed as specializing in family medicine — adult medicine and family medicine — geriatric medicine. According to Medicare claims data, John cared for 284 Medicare patients across 334 services. The services billed most often include initial nursing facility care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes, subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes, and subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more. The provider's National Provider Identifier (NPI) is 1942201546.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
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) 774-6929
- Email not available
Practice Locations
5622 SE 41ST AVE
Portland, OR 97202
Conditions Commonly Evaluated or Treated
Within General Practice 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
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
Blood disorders
Bone health
Brain & Nerves
Digestive Health
- Acid reflux
- Constipation
- Viral gastroenteritis
Digestive health
- Food Poisoning
- Hemorrhoids
- IBS
Ear, Nose & Throat
Endocrine
Eye Care
Foot & Ankle
General Health
Heart & Circulation
Infections
Joint & Muscle
Lungs & Breathing
Men's Health
Mental Health
Pain
Pain & Joints
Skin
Skin & Hair
Sleep
Urinary & Kidney
Weight & Metabolism
Women's Health
Procedures & services
Most searched procedures
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Dermatology
Diagnostic testing
Ear, Nose & Throat
Exams & Clearances
Heart & Circulation
Hormone therapy
Infections & Screening
- Cholesterol Check
- COVID-19 testing
- STI Testing
- Urine Drug Screen
Injections
- Antibiotic Injection
Lab tests
- Rapid flu test
- Rapid Mono Test
- Rapid strep testing
- Urinalysis
- Vaccine Titer Test
Lungs & Breathing
Men's Health
- Prostate exam
Mental health
- Mental Health Evaluation
Minor Surgery
- Incision and drainage of an abscess
- Ingrown toenail removal
- Mole removal
- Skin Tag Removal
- Superficial foreign-body removal
- Wart Removal
Pain & Injections
Pain & Joints
Pain management
Physical exams
- Daycare Physical
Prescriptions & Medications
- Prescription Refill
Preventive care
Preventive Care
Sleep
- At-Home Sleep Study Ordering
Vaccines
- HPV vaccine
- Routine Vaccines
- Shingles And Senior Vaccinations
- Tetanus shot
- Travel vaccines
Weight & Metabolism
Women's Health
- Birth control counseling
- Depo Shot
- IUD Removal
- Pap smear
- Pelvic exam
- Pregnancy Confirmation Test
Wound Care
- Burn and Wound Care
- Minor laceration repair
- Suture removal
Procedures Most Often Billed to Medicare
334 services · 284 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Initial nursing facility care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99304 |
137 | Too few peers to compare |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes | Office visit | 99307 |
64 | Too few peers to compare |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
34 | Less often than most peers in General Practice |
| Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more | Office visit | 99306 |
33 | Less often than most peers in General Practice |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes | Office visit | 99307 |
32 | Too few peers to compare |
| Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | Office visit | 99305 |
19 | Too few peers to compare |
| Initial nursing facility care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99304 |
15 | Too few peers to compare |
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 2
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other general practitioners in Portland 2
Same specialty, same city.
Trained at Oregon Health Sciences University School of Medicine 7
Other providers in the same specialty who trained at the same institution.
More connections — 7 related providers in 1 group
Class of 1980 at Oregon Health Sciences University School of Medicine 7
Providers who graduated from the same medical school in the same year.
Common questions
What does John Denker specialize in?
John Denker is a general practitioner in Portland, OR. That is the designation recorded for this NPI in the federal registry, where it is listed as “General Practice”.
NPI registry
Where is John Denker located?
John Denker is listed at 5622 Se 41St Ave, Portland, OR 97202. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is John Denker's phone number?
The number on file is (503) 774-6929. Contact the office directly to confirm availability and scheduling.
NPI registry
What is John Denker's NPI number?
John Denker's National Provider Identifier is 1942201546. 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 John Denker train?
John Denker attended Oregon Health Sciences University School of Medicine, graduating in 1980. This comes from the CMS National Downloadable File.
CMS public data
How long has John Denker been practicing?
John Denker has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.
CMS public data
What does John Denker do most often?
According to Medicare billing data, John Denker 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
Has John Denker confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by John Denker. If this is you, claiming it is free.
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