Physician Profile
Unclaimed ProfileAbout Dr. Hann
John Hann, M.D. practices family practice in Orange, CA. John is a 2011 graduate of University of California, Geffen School of Medicine. John is also listed as specializing in family medicine. According to Medicare claims data, John cared for 110 Medicare patients across 200 services.
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
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (714) 456-7890
- Email not available
Practice Locations
101 THE CITY DR S
Orange, CA 92868
Conditions Commonly Evaluated or Treated
Within Family 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
Cardiometabolic
- High blood pressure (hypertension)
- High cholesterol and lipid disorders
- Metabolic syndrome
- Overweight and obesity
- Peripheral artery disease
- Prediabetes
- Stable coronary artery disease
- Type 2 diabetes
Digestive
- Acid reflux (GERD)
- Acute diarrhea
- Constipation
- Diverticulosis and uncomplicated diverticulitis
- Fatty liver disease
- Hemorrhoids
- Irritable bowel syndrome
- Peptic ulcer disease
- Viral gastroenteritis
Endocrine, blood, and bone
- Iron-deficiency anemia
- Osteoporosis
- Overactive thyroid (hyperthyroidism)
- Underactive thyroid (hypothyroidism)
- Vitamin D deficiency
Genitourinary and reproductive
- Abnormal uterine bleeding
- Enlarged prostate (BPH)
- Erectile dysfunction
- Painful periods
- Sexually transmitted infections
- Urinary tract infection
- Vaginitis
Musculoskeletal and pain
- Fibromyalgia
- Gout
- Low back pain
- Neck pain
- Osteoarthritis
- Plantar fasciitis
- Sprains and muscle strains
- Tendinitis and tendinopathy
Neurologic and behavioral
- Anxiety disorders
- Attention-deficit/hyperactivity disorder
- Depression
- Dizziness and vertigo
- Insomnia
- Migraine
- Tension headaches
Respiratory and infectious
- Acute bronchitis
- Asthma
- Chronic obstructive pulmonary disease
- Common cold and upper respiratory infections
- Community-acquired pneumonia
- COVID-19
- Influenza
- Mononucleosis
- Sinus infection
- Strep throat
Skin
Common childhood and ear conditions
Procedures & services
Preventive and evaluation
- Annual physical and preventive visit
- Chronic disease management
- Medicare annual wellness visit
- Medication review and management
- Preoperative medical clearance
- Sports physical
- Well-child visits
Preventive interventions
- Birth control counseling
- Smoking cessation counseling
- Vaccinations and immunizations
- Weight-management counseling
Screening and testing
- Blood pressure screening
- Cholesterol screening
- Depression screening
- Diabetes and prediabetes screening
- Electrocardiogram
- Point-of-care laboratory testing
- Spirometry
Office procedures
Procedures Most Often Billed to Medicare
200 services · 110 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
98 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
39 |
| Hospital discharge day management, more than 30 minutes | Office visit | 99239 |
33 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
30 |
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 family practices in Orange 8
Same specialty, same city.
Trained at University of California, Geffen School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 2011 at University of California, Geffen School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Hann specialize in?
Dr. Hann is a family practice in Orange, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “FAMILY PRACTICE”.
NPI registry
Where is Dr. Hann located?
Dr. Hann is listed at 101 THE CITY DR S, Orange, CA 92868. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Hann's phone number?
The number on file is (714) 456-7890. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Hann's NPI number?
Dr. Hann's National Provider Identifier is 1689968224. 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. Hann go to medical school?
Dr. Hann attended University of California, Geffen School of Medicine, graduating in 2011. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Hann been practicing?
Dr. Hann has 15 years experience. Calculated from a graduation year of 2011, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Hann do most often?
According to Medicare billing data, Dr. Hann 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 Dr. Hann confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Hann. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.