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Edit this profileWhere to find Michael A. Katz, MD
- Fullerton location main office
101 E Valencia Mesa Dr, Fullerton, CA 92835 - Orange location
725 W La Veta Ave Ste 260, Orange, CA 92868
About Dr. Katz
Based in Fullerton, CA, Michael A. Katz, MD is listed in the NPI registry under internal medicine. Michael graduated from University of Arizona College of Medicine in 2000. Michael is also listed as specializing in emergency medicine, critical care medicine, and hospice & palliative medicine. Medicare claims data shows Michael provided 520 services to 241 patients. The services billed most often include critical care, first 30-74 minutes, critical care, each additional 30 minutes, and insertion of non-tunneled central venous tube for infusion (5 years or older). NPI 1841213899 identifies this record in the national registry.
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
- (714) 992-3969
- Email not available
Practice Locations
101 E VALENCIA MESA DR
Fullerton, CA 92835
725 W La Veta Ave Ste 260
Orange, CA 92868
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
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
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
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Preventive and evaluation
- Medication management
- Post-hospital transitional care
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
- Colon Cancer Screening Referral
- Mammogram Referral
Digestive
Exams & Consultations
Heart & Circulation
Heart health
- Cardiac Stress Test Referral
Imaging referral
- Abdominal Ultrasound Referral
Immunizations
Lab tests
Lungs & Breathing
- At-Home Sleep Study Order
Metabolic & Weight
- Weight Loss Injections and Medication
Minor procedures
Office procedures
Office Procedures
- Skin Tag and Mole Removal
- Vitamin B12 Injections
- Wart Removal
Pain management
Preventive & Routine Care
Screenings & Diagnostics
- Bone Density Scan Referral
- Diabetes Screening and A1C Test
Sexual health
- STI Testing
Procedures Most Often Billed to Medicare
520 services · 241 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of non-tunneled central venous tube for infusion (5 years or older) | Procedure | 36556 |
17 | As often as other peers in Internal Medicine |
| Emergent insertion of breathing tube into windpipe using an endoscope | Procedure | 31500 |
12 | Less often than most peers in Internal Medicine |
| Critical care, first 30-74 minutes | Office visit | 99291 |
387 | More than most peers in Internal Medicine |
| Critical care, each additional 30 minutes | Office visit | 99292 |
91 | More than most peers in Internal Medicine |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
13 | Less often than most peers in Internal 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 internists at this location 7
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 7
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 — 30 related providers in 4 groups
Other internists in Fullerton 6
Same specialty, same city.
Trained at University of Arizona College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2000 at University of Arizona College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of non-tunneled central venous tube for infusion (5 years or older) 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Katz specialize in?
Dr. Katz is an internist in Fullerton, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Dr. Katz located?
Dr. Katz is listed at 101 E Valencia Mesa Dr, Fullerton, CA 92835. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Katz's phone number?
The number on file is (714) 992-3969. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Katz?
Dr. Katz's National Provider Identifier is 1841213899. 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. Katz go to medical school?
Dr. Katz attended University of Arizona College of Medicine, graduating in 2000. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Katz have?
Dr. Katz has 26 years experience. Calculated from a graduation year of 2000, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Katz do most often?
According to Medicare billing data, Dr. Katz performs procedures including insertion of non-tunneled central venous tube for infusion and emergent insertion of breathing tube into windpipe using an endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Katz's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Katz. If this is you, claiming it is free.
Guide.md
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