Physician Profile
Unclaimed ProfileAbout SO
Based in Tucson, AZ, Mei Lai So, MD is listed in the NPI registry under internal medicine. Mei graduated from University of Arizona College of Medicine in 2019.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What is Dr. So's specialty?
Dr. So is an internal medicine in Tucson, AZ. 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. So?
Dr. So is listed at 6236 E PIMA ST STE 100, Tucson, AZ 85712. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. So?
The number on file is (520) 327-6874. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. So?
Dr. So's National Provider Identifier is 1669935441. 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. So's medical education?
Dr. So attended University of Arizona College of Medicine, graduating in 2019. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. So have?
Dr. So has 7 years experience. Calculated from a graduation year of 2019, reported in the CMS National Downloadable File.
CMS public data
What is Dr. So known for?
According to Medicare billing data, Dr. So 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
Is Dr. So's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. So. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (520) 327-6874
- Email not available
Practice Locations
6236 E PIMA ST STE 100
Tucson, AZ 85712
Procedures Most Often Billed to Medicare
401 services · 212 patients · 6 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
207 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
96 |
| Hospital discharge day management, more than 30 minutes | Office visit | 99239 |
51 |
| Hospital discharge day management, 30 minutes or less | Office visit | 99238 |
19 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
17 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
11 |
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.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
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 internal medicines in Tucson 8
Same specialty, same city.
More connections — 14 related providers in 2 groups
Trained at University of Arizona College of Medicine 7
Other providers in the same specialty who trained at the same institution.
Class of 2019 at University of Arizona College of Medicine 7
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.