Provider Profile
Tammy E. Lo, MMS, PA-C
Unclaimed ProfileAbout Tammy Lo
Tammy E. Lo, MMS, PA-C is a physician assistant based in Fullerton, CA. According to Medicare claims data, Tammy cared for 479 Medicare patients across 611 services.
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
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (714) 626-8650
- Email not available
Practice Locations
2141 N HARBOR BLVD STE 25000
Fullerton, CA 92835
Procedures Most Often Billed to Medicare
611 services · 479 patients · 6 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
58 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
366 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
115 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
31 |
| Telephone medical discussion with physician, 21-30 minutes | Office visit | 99443 |
25 |
| Telephone medical discussion with physician, 11-20 minutes | Office visit | 99442 |
16 |
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 physician assistants at this location 1
Same specialty, same street address — most likely the same department or group.
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.
More connections — 32 related providers in 4 groups
Other physician assistants in Fullerton 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2018 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Lo specialize in?
Dr. Lo is a physician assistant in Fullerton, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PHYSICIAN ASSISTANT”.
NPI registry
Where is Dr. Lo located?
Dr. Lo is listed at 2141 N HARBOR BLVD STE 25000, Fullerton, CA 92835. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Lo's phone number?
The number on file is (714) 626-8650. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Lo's NPI number?
Dr. Lo's National Provider Identifier is 1891269502. 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 Dr. Lo go to medical school?
Dr. Lo attended Other, graduating in 2018. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Lo been practicing?
Dr. Lo has 8 years experience. Calculated from a graduation year of 2018, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Lo do most often?
According to Medicare billing data, Dr. Lo provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Lo confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Lo. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.