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- 1 Genesys Pkwy, Grand Blanc, MI 48439
About Dr. Janson
Based in Grand Blanc, MI, John P. Janson, M.D. is listed in the NPI registry under emergency medicine. According to Medicare claims data, John cared for 35 Medicare patients across 35 services. The services billed most often include emergency department visit with high level of medical decision making and emergency department visit with moderate level of medical decision making. NPI 1538570098 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
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
- (810) 606-5000
- Email not available
Practice Locations
1 GENESYS PKWY
Grand Blanc, MI 48439
Conditions Commonly Evaluated or Treated
Within Emergency 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
Abdomen & Digestion
Allergy & Immune
- Angioedema
Allergy & Immunology
- Severe Allergic Reaction
Bites & Stings
- Snake Bite or Venomous Sting
- Spider or insect sting reaction
Blood & Circulation
Brain & Nerves
- Delirium
- Fainting and syncope
- Seizure in Child
- Severe headache or sudden migraine
- Status epilepticus
- Stroke
- Transient ischemic attack
Breathing
Digestion & Stomach
- Abdominal Pain
- Acute gallbladder inflammation
- Bowel obstruction
Ear, Nose & Throat
- Nosebleeds
Endocrine & Metabolic
- Dangerous high blood sugar
- Dangerously low blood sugar
Environmental
Eye Care
- Open-globe eye injury
Eye Emergency
General Emergency
Heart & Chest
Heart & Circulation
- Dangerous high blood pressure
Heart & Lungs
Infections & Illness
- High fever
- Sepsis or blood infection
Injuries & Trauma
- Animal or dog bite
- Bone fractures
- Deep cut or wound
- Dislocated joint
- Severe burn
- Sprains and muscle strains
- Traumatic brain injury
Lungs & Breathing
Men's Health
- Testicular torsion
Poisoning & Environmental
Poisoning & Toxins
Skin & Infections
- Skin abscess or boil
Spine & Back
- Severe back pain
Urinary & Bladder
- Inability to pee
Urinary & Kidney
- Kidney stones
Women's Health
- Ectopic pregnancy
- Heavy vaginal bleeding
Procedures & services
Abdominal Procedures
Airway & Breathing
- Emergency surgical airway
Anesthesia & Sedation
Breathing & Airway
- Breathing Treatment
- Emergency intubation
Critical Care
- Blood transfusion
- Central line placement
- Chest tube insertion
- CPR and defibrillation
Diagnostics
- Lumbar puncture
- Rapid blood work
Digestive Care
- Urgent upper endoscopy
Ear, Nose & Throat
- Nasal packing for nosebleed
Eye & ENT
- Eye-pressure measurement
- Foreign Object Removal from Eye
- Superficial foreign-body removal
Eye Care
Heart & Diagnostics
Heart Care
- Temporary Pacemaker Placement
Imaging & Diagnostics
- Emergency CT scan
- Emergency MRI scan
- Emergency ultrasound
- Emergency X-ray
Injections & Vaccines
- Rabies shot series
- Tetanus shot
Kidney Care
- Emergency dialysis
Lung & Respiratory
Medications
- Emergency epinephrine injection
- IV medication for severe nausea
- IV medication for severe pain
Mental Health
- Emergency psychiatric evaluation
Minor Procedures
- Fishhook or embedded splinter removal
- Incision and drainage of an abscess
- Nasal cautery for nosebleeds
- Tick Removal
- Urinary catheter insertion
Minor Trauma
- Stuck ring removal
Orthopedic Procedures
Orthopedics
- Popping a dislocated joint back in place
- Splinting and temporary casting
Poisoning & Toxicology
- Antivenom treatment
Specialized Care
- Sexual assault forensic exam
Stroke & Vascular
- Clot busting medication for stroke
Supportive Care
- IV fluids
Toxicology
- Narcan overdose reversal
- Stomach pumping or activated charcoal
Women's Health
- Emergency pelvic exam
Wound Care
- Burn dressing and care
- Skin glue for cuts
- Stitches and Laceration Repair
- Wound cleaning and debridement
- Wound stapling
Procedures Most Often Billed to Medicare
35 services · 35 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
19 | Less often than most peers in Emergency Medicine |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
16 | Less often than most peers in Emergency 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.
Other emergency physicians at this location 7
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 6
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 3 related providers in 1 group
Other emergency physicians in Grand Blanc 3
Same specialty, same city.
Common questions
What does John P. Janson specialize in?
John P. Janson is an emergency physician in Grand Blanc, MI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Emergency Medicine”.
NPI registry
Where is John P. Janson located?
John P. Janson is listed at 1 Genesys Pkwy, Grand Blanc, MI 48439. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is John P. Janson's phone number?
The number on file is (810) 606-5000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is John P. Janson's NPI number?
John P. Janson's National Provider Identifier is 1538570098. 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
How long has John P. Janson been practicing?
John P. Janson has 12+ years experience. Registered with an NPI since 2014. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What does John P. Janson do most often?
According to Medicare billing data, John P. Janson 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 P. Janson confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by John P. Janson. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.