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Edit this profileAt a glance
- 50 Bellefontaine St, #301, Pasadena, CA 91105
About Dr. Chen
Based in Pasadena, CA, Tommy H. Chen, M.D. is listed in the NPI registry under dermatology. Tommy graduated from Emory University School of Medicine in 1974. According to Medicare claims data, Tommy cared for 324 Medicare patients across 491 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and destruction of precancer skin growth, 15 or more growths. NPI 1326136854 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (626) 793-4857
- Email not available
Practice Locations
50 BELLEFONTAINE ST #301
Pasadena, CA 91105
Conditions Commonly Evaluated or Treated
Within Dermatology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Autoimmune and connective tissue
Cancer care
Pediatric and genetic
Rashes & allergy
Wounds & skin
Most searched conditions
Acne and follicular disorders
Eczema and inflammatory skin disease
Infections and infestations
Pigment, growths, and benign lesions
Skin cancer
Urticaria, itch, and vascular
Infections
Skin growths
Procedures & services
Bladder & bowel
Cosmetic & plastics
Cosmetic dermatology
Diagnostic procedures
- Dermoscopy
- Excisional skin biopsy
- Punch biopsy
- Shave biopsy
- Skin scraping for fungal or mite testing
- Patch testing
- Skin biopsy
Lesion treatment
- Chemical treatment of skin lesions
- Incision and drainage of an abscess
- Intralesional medication injection
- Complex skin lesion excision
- Cryotherapy for skin lesions
- Electrodesiccation and curettage
Medical dermatology treatment
Skin and Scars
Skin cancer surgery
Skin growths
Wound Care
Most searched procedures
Cosmetic
- Acne scar treatment
- Dermal fillers
- Sclerotherapy
- Tattoo removal
Cosmetic and minor surgery
Diagnostic
General dermatology
Infections
Medical dermatology
Nails & hair
Procedures Most Often Billed to Medicare
491 services · 324 patients · 9 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 15 or more growths | Procedure | 17004 |
65 | More often than most peers in Dermatology |
| Destruction of skin growth, 1-14 growths | Procedure | 17110 |
45 | Less often than most peers in Dermatology |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
43 | Less often than most peers in Dermatology |
| Biopsy of related skin growth, each additional growth | Procedure | 11103 |
15 | Less often than most peers in Dermatology |
| Punch biopsy, first skin growth | Procedure | 11104 |
11 | Less often than most peers in Dermatology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
200 | As often as other peers in Dermatology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
66 | Less often than most peers in Dermatology |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
33 | Less often than most peers in Dermatology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
13 | Less often than most peers in Dermatology |
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 dermatologists at this location 1
Same specialty, same street address — most likely the same department or group.
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 dermatologists in Pasadena 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Emory University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1974 at Emory University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Destruction of precancer skin growth, 15 or more growths 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Tommy H. Chen's specialty?
Tommy H. Chen is a dermatologist (skin doctor) in Pasadena, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Dermatology”.
NPI registry
Where can I find Tommy H. Chen?
Tommy H. Chen is listed at 50 Bellefontaine St #301, Pasadena, CA 91105. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Tommy H. Chen?
The number on file is (626) 793-4857. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Tommy H. Chen's NPI number?
Tommy H. Chen's National Provider Identifier is 1326136854. 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 Tommy H. Chen's education?
Tommy H. Chen attended Emory University School of Medicine, graduating in 1974. This comes from the CMS National Downloadable File.
CMS public data
How long has Tommy H. Chen been practicing?
Tommy H. Chen has 52 years experience. Calculated from a graduation year of 1974, reported in the CMS National Downloadable File.
CMS public data
What is Tommy H. Chen known for?
According to Medicare billing data, Tommy H. Chen performs procedures including destruction of precancer skin growth, 15 or more growths, destruction of skin growth, 1-14 growths and biopsy of related skin growth, first growth, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Tommy H. Chen confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Tommy H. Chen. If this is you, claiming it is free.
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