Physician Profile
Michael A. Zimmerman, MD is a healthcare provider in Oakland, CA specializing in family medicine. Michael trained at Clvlnd Clinic Lerner College of Med of Case Wstn RSV University, graduating in 1998. According to Medicare claims data, Michael cared for 389 Medicare patients across 519 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, annual alcohol misuse screening, 5 to 15 minutes, and annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
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.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
405 49TH ST
Oakland, CA 94609
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.
Most searched conditions
Cardiometabolic
Digestive
Genitourinary and reproductive
Musculoskeletal and pain
Neurologic and behavioral
Respiratory and infectious
Skin
Common childhood and ear conditions
Pain & Joints
Most searched procedures
Preventive interventions
Screening and testing
Diagnostic Tests
Exams & Screenings
Foot and Leg Pain
Heart & Circulation
Injections
Lungs & Breathing
Minor Procedures
Occupational Health
Office procedures
Pain Management
Preventive Care
Respiratory
Senior Care
Sexual & Reproductive Health
Skin Procedures
Sleep Health
Urgent Care Procedures
Wellness & Weight
Women's Health
519 services · 389 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
273 | More often than most peers in Family Medicine |
| Annual alcohol misuse screening, 5 to 15 minutes | Billing code | G0442 |
58 | As often as other peers in Family Medicine |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
57 | As often as other peers in Family Medicine |
| Annual depression screening, 5 to 15 minutes | Billing code | G0444 |
52 | As often as other peers in Family Medicine |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
26 | Less often than most peers in Family Medicine |
| Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes | Billing code | G0446 |
20 | Less often than most peers in Family Medicine |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
19 | As often as other peers in Family Medicine |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
14 | Less often than most peers in Family Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Zimmerman is a family doctor in Oakland, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine”.
NPI registry
Dr. Zimmerman is listed at 405 49Th St, Oakland, CA 94609. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (510) 230-2372. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Zimmerman's National Provider Identifier is 1366513822. 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
Dr. Zimmerman attended Clvlnd Clinic Lerner College of Med of Case Wstn RSV University, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
Dr. Zimmerman has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Zimmerman 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
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Zimmerman. 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.