Andrea Dhaliwal, M.D.
NPI 1548557077 · Internal Medicine Physician · Castro Valley, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrea Dhaliwal, M.D. is a Internal Medicine Physician provider in Castro Valley, CA (NPI 1548557077).
Provider details
- NPI number
- 1548557077
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A133138 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
798 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 280 | $132 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 190 | $81 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 179 | $193 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 111 | $130 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 38 | $144 |
Typical Medicare-allowed amounts for these services range $81–$193 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-07-05
- Last updated
- 2015-11-05
Frequently asked questions
- What is Andrea Dhaliwal's NPI number?
- Andrea Dhaliwal's National Provider Identifier (NPI) is 1548557077, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrea Dhaliwal's specialty?
- Andrea Dhaliwal is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Andrea Dhaliwal located?
- Andrea Dhaliwal's practice location on file with NPPES is 20103 Lake Chabot Rd, Castro Valley, CA 94546-5305.
- What is Andrea Dhaliwal's phone number?
- The practice phone number listed in the NPPES registry for Andrea Dhaliwal is (510) 889-5082.
- Does Andrea Dhaliwal accept Medicare?
- Andrea Dhaliwal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrea Dhaliwal's NPI active?
- Yes — Andrea Dhaliwal's NPI (1548557077) is active in the NPPES registry as of the last update on 2015-11-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.