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Edit this profileWhere to find Lewis Gamarra, M.D.
- Emeryville location main office
2100 Powell St Ste 400, Emeryville, CA 94608 - Los Osos location
2115 10Th St, Ste A2, Los Osos, CA 93402
About Dr. Gamarra
Lewis Gamarra, M.D. is a hospitalist based in Emeryville, CA. Lewis is a 1988 graduate of Medical College of Wisconsin. Lewis is also listed as specializing in internal medicine. According to Medicare claims data, Lewis cared for 1,137 Medicare patients across 2,346 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, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and destruction of precancer skin growth, 2-14 growths. The provider's National Provider Identifier (NPI) is 1124048608.
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
- (510) 851-7501
- Email not available
Practice Locations
2100 POWELL ST STE 400
Emeryville, CA 94608
2115 10TH ST STE A2
Los Osos, CA 93402
Conditions Commonly Evaluated or Treated
Within Hospital 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
Brain & nerves
Breathing & lungs
Digestive health
- C. diff diarrhea
- Severe diverticulitis flare-up
- Stomach or intestinal bleeding
- Acute gallbladder inflammation
- Acute pancreatitis
- Ascites
- Bowel obstruction
Endocrine
General medical
- Hip fracture medical care
- Low sodium or electrolyte imbalance
- Post-surgery fever or infection
- Severe dehydration
- Short stature and growth concerns
Heart & Circulation
Heart & circulation
- Heart failure flare-up
- Dangerous high blood pressure
- Deep vein thrombosis
- Severe anemia
- Supraventricular tachycardia
- Unexplained chest pain
Infections
- Complicated Bladder Infection
- Severe COVID-19 illness
- Severe flu illness
- Bone infection
- Cellulitis
- Flesh-Eating Infection
- Infective endocarditis
- Sepsis or blood infection
Liver & Digestive
Lung Infections
Nutrition
Allergic Reactions
Blood Clots
Blood Disorders
Brain & Nerves
Emergencies
Hormones & diabetes
Kidney & urinary
Lungs & Breathing
Procedures & services
Access & tubes
- Feeding or stomach tube insertion
- Urinary catheter insertion
- Arterial catheter placement
- Central line placement
- PICC line placement coordination
Addiction Medicine
Breathing support
Critical Care
Diagnostic procedures
- Hospital heart rhythm monitoring
- Swallowing safety evaluation coordination
- Emergency ultrasound
- Lumbar puncture
Emergency Care
Heart Procedures
Hospital services
- Alcohol detox monitoring
- Comfort care transition
- Hospital admission
- Hospital discharge planning
- Hospital observation care
- Hospital wound and bed sore care
- Inpatient dialysis coordination
- Inpatient physical therapy evaluation
- Post-surgery hospital recovery care
- Pre-surgery medical clearance
- Rehab or nursing home placement evaluation
- Specialist consultation coordination
- Fall risk assessment
- Medication management
Kidney Care
Medication & fluids
- Blood thinner drip management
- IV antibiotic treatment
- IV electrolyte replacement
- Patient-Controlled Analgesia (PCA) Setup
- Blood sugar insulin drip
- Blood transfusion
- IV fluids
Mental Health
Neurological Care
Rehabilitation
Urinary Care
Airway & Breathing
Diagnostic Testing
Draining fluids
Joint Procedures
Lung Procedures
Nutrition Support
Procedures Most Often Billed to Medicare
2,346 services · 1,137 patients · 22 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
302 | Too few peers to compare |
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
64 | Too few peers to compare |
| Removal of impacted ear wax | Procedure | 69210 |
30 | Too few peers to compare |
| Influenza vaccine, trivalent, split virus, preservative-free, 0.5 ml dosage | Treatment | 90656 |
72 | Too few peers to compare |
| Exam of neurobehavioral status, first hour | Treatment | 96116 |
30 | Too few peers to compare |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
28 | As often as other peers in Hospitalist |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
790 | More than most peers in Hospitalist |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
344 | More than most peers in Hospitalist |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
178 | As often as other peers in Hospitalist |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
99 | More often than most peers in Hospitalist |
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 hospitalists at this location 1
Same specialty, same street address — most likely the same department or group.
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 hospitalists in Emeryville 7
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Medical College of Wisconsin 8
Other providers in the same specialty who trained at the same institution.
Class of 1988 at Medical College of Wisconsin 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Lewis Gamarra specialize in?
Lewis Gamarra is a hospitalist in Emeryville, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Lewis Gamarra located?
Lewis Gamarra is listed at 2100 Powell St Ste 400, Emeryville, CA 94608. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Lewis Gamarra's phone number?
The number on file is (510) 851-7501. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Lewis Gamarra's NPI number?
Lewis Gamarra's National Provider Identifier is 1124048608. 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 Lewis Gamarra train?
Lewis Gamarra attended Medical College of Wisconsin, graduating in 1988. This comes from the CMS National Downloadable File.
CMS public data
How long has Lewis Gamarra been practicing?
Lewis Gamarra has 38 years experience. Calculated from a graduation year of 1988, reported in the CMS National Downloadable File.
CMS public data
What does Lewis Gamarra do most often?
According to Medicare billing data, Lewis Gamarra performs procedures including destruction of precancer skin growth, 2-14 growths, destruction of precancer skin growth, 1 growth and removal of impacted ear wax; provides treatments such as influenza vaccine, trivalent, split virus, preservative-free, 0.5 ml dosage and exam of neurobehavioral status, first hour, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Lewis Gamarra confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Lewis Gamarra. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.