Physician Profile
Unclaimed ProfileAbout SIA
No biography has been added yet. Is this you? Claim this profile to add one.
Education & Training
Areas of Expertise
Common questions
What is Dr. Sia's specialty?
Dr. Sia is an internal medicine in Apple Valley, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where can I find Dr. Sia?
Dr. Sia is listed at 16008 TUSCOLA ROAD SUITE 1, Apple Valley, CA 92307. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Sia?
The number on file is (760) 946-3888. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Sia's NPI number?
Dr. Sia's National Provider Identifier is 1518061860. 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
What is Dr. Sia's medical education?
Dr. Sia attended Other, graduating in 1991. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Sia been practising?
Dr. Sia has 35 years experience. Calculated from a graduation year of 1991, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Sia known for?
According to Medicare billing data, Dr. Sia 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
Has Dr. Sia confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Sia. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (760) 946-3888
- Email not available
Practice Locations
16008 TUSCOLA ROAD SUITE 1
Apple Valley, CA 92307
Procedures Most Often Billed to Medicare
390 services · 263 patients · 5 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
212 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
84 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
41 |
| Annual depression screening, 5 to 15 minutes | Billing code | G0444 |
27 |
| Telephone medical discussion with physician, 21-30 minutes | Office visit | 99443 |
26 |
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 internal medicines in Apple Valley 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1991 at Other 8
Providers who graduated from the same medical school in the same year.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.