Tom Giang, M.D.
NPI 1669668901 · Internal Medicine Physician · Monterey Park, CA
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tom Giang, M.D. is a Internal Medicine Physician provider in Monterey Park, CA (NPI 1669668901).
Provider details
- NPI number
- 1669668901
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A47871 (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
18 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
1,984 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) |
|---|---|---|
| Application of Electrical Stimulation With Therapist Present, Each 15 Minutes97032 | 598 | $12 |
| Application of Ultrasound, Each 15 Minutes97035 | 598 | $11 |
| Therapy Procedure Using Exercise to Develop Strength, Endurance, Range of Motion, and Flexibility, Each 15 Minutes97110 | 595 | $25 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 131 | $79 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 62 | $138 |
Typical Medicare-allowed amounts for these services range $11–$138 (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
- 2007-09-20
- Last updated
- 2007-09-20
Frequently asked questions
- What is Tom Giang's NPI number?
- Tom Giang's National Provider Identifier (NPI) is 1669668901, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tom Giang's specialty?
- Tom Giang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tom Giang located?
- Tom Giang's practice location on file with NPPES is 600 N Garfield Ave, Monterey Park, CA 91754-1166.
- What is Tom Giang's phone number?
- The practice phone number listed in the NPPES registry for Tom Giang is (626) 280-2533.
- Does Tom Giang accept Medicare?
- Tom Giang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tom Giang's NPI active?
- Yes — Tom Giang's NPI (1669668901) is active in the NPPES registry as of the last update on 2007-09-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.