Physician Profile
William G. Tsiaras, M.D., PhD
Unclaimed ProfileAbout Dr. Tsiaras
William G. Tsiaras, M.D., PhD is a healthcare provider in Boston, MA specializing in dermatology. William is also listed as specializing in internal medicine. According to Medicare claims data, William cared for 623 Medicare patients across 1,515 services. The services billed most often include destruction of precancer skin growth, 2-14 growths, established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
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
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (617) 732-4918
- Email not available
Practice Locations
221 LONGWOOD AVE BRIGHAM DERMATOLOGY ASSOCIATES
Boston, MA 02115
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
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
Autoimmune and connective tissue
Infections
Rashes & allergy
Skin growths
Procedures & services
Most searched procedures
Diagnostic procedures
Lesion treatment
- Complex skin lesion excision
- Cryotherapy for skin lesions
- Electrodesiccation and curettage
- Incision and drainage of an abscess
Medical dermatology treatment
Cosmetic
Cosmetic and minor surgery
Cosmetic dermatology
Diagnostic
General dermatology
Infections
Medical dermatology
Nails & hair
Skin cancer surgery
Skin growths
Procedures Most Often Billed to Medicare
1,515 services · 623 patients · 9 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
391 | As often as other peers in Dermatology |
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
147 | As often as other peers in Dermatology |
| Removal of skin and tissue, 20.0 sq cm or less | Procedure | 11042 |
79 | More often than most peers in Dermatology |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
26 | Less often than most peers in Dermatology |
| Destruction of precancer skin growth, 15 or more growths | Procedure | 17004 |
23 | Less often than most peers in Dermatology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
375 | More than most 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 |
352 | More often than most peers in Dermatology |
| Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | Billing code | G2212 |
105 | Too few peers to compare |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
17 | 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 8
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 Boston 8
Same specialty, same city.
More connections — 22 related providers in 3 groups
Trained at Other 7
Other providers in the same specialty who trained at the same institution.
Class of 2010 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Destruction of precancer skin growth, 2-14 growths 7
Providers in MA who bill this service to Medicare most often.
Common questions
What does William G. Tsiaras, M.D. specialize in?
William G. Tsiaras, M.D. is a dermatologist (skin doctor) in Boston, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Dermatology”.
NPI registry
Where is William G. Tsiaras, M.D. located?
William G. Tsiaras, M.D. is listed at 221 Longwood Ave Brigham Dermatology Associates, Boston, MA 02115. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is William G. Tsiaras, M.D.'s phone number?
The number on file is (617) 732-4918. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is William G. Tsiaras, M.D.'s NPI number?
William G. Tsiaras, M.D.'s National Provider Identifier is 1215255526. 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 William G. Tsiaras, M.D. train?
William G. Tsiaras, M.D. attended Other, graduating in 2010. This comes from the CMS National Downloadable File.
CMS public data
How long has William G. Tsiaras, M.D. been practicing?
William G. Tsiaras, M.D. has 16 years experience. Calculated from a graduation year of 2010, reported in the CMS National Downloadable File.
CMS public data
What does William G. Tsiaras, M.D. do most often?
According to Medicare billing data, William G. Tsiaras, M.D. performs procedures including destruction of precancer skin growth, 2-14 growths, destruction of precancer skin growth, 1 growth and removal of skin and tissue, 20.0 sq cm or less, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has William G. Tsiaras, M.D. confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by William G. Tsiaras, M.D.. 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.