Physician Profile
Maria Ait Rais, M.D. is a hospitalist based in Castro Valley, CA. Maria is also listed as specializing in internal medicine. According to Medicare claims data, Maria cared for 460 Medicare patients across 698 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, hospital discharge day management, more than 30 minutes, and initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes. The provider's National Provider Identifier (NPI) is 1811239304.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
20103 LAKE CHABOT RD
Castro Valley, CA 94546
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.
Allergic Reactions
Blood Clots
Blood Disorders
Brain & nerves
Brain & Nerves
Breathing & lungs
Digestive health
Emergencies
Endocrine
General medical
Heart & Circulation
Heart & circulation
Hormones & diabetes
Infections
Kidney & urinary
Liver & Digestive
Lung Infections
Lungs & Breathing
Nutrition
Access & tubes
Addiction Medicine
Airway & Breathing
Breathing support
Critical Care
Diagnostic procedures
Diagnostic Testing
Draining fluids
Emergency Care
Heart Procedures
Hospital services
Joint Procedures
Kidney Care
Lung Procedures
Medication & fluids
Mental Health
Neurological Care
Nutrition Support
Rehabilitation
Urinary Care
698 services · 460 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
420 | More often than most peers in Hospitalist |
| Hospital discharge day management, more than 30 minutes | Office visit | 99239 |
163 | More often than most peers in Hospitalist |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
54 | As often as other peers in Hospitalist |
| Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by t | Billing code | G0316 |
32 | As often as other peers in Hospitalist |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
17 | Less often than most peers in Hospitalist |
| Advance care planning, first 30 minutes | Office visit | 99497 |
12 | Less often than most peers in Hospitalist |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Maria Ait Rais is a hospitalist in Castro Valley, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Maria Ait Rais is listed at 20103 Lake Chabot Rd, Castro Valley, CA 94546. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (510) 889-5082. Contact the office directly to confirm availability and scheduling.
NPI registry
Maria Ait Rais's National Provider Identifier is 1811239304. 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
Maria Ait Rais attended Other, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
Maria Ait Rais has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Maria Ait Rais 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 Maria Ait Rais. If this is you, claiming it is free.
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