Anna Chien, MD
NPI 1538286059 · Dermatology Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anna Chien, MD is a Dermatology Physician provider in Baltimore, MD (NPI 1538286059).
Provider details
- NPI number
- 1538286059
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- D69392 (MD)
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
19 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
1,268 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) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 452 | $7 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 232 | $95 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 161 | $133 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 141 | $61 |
| Biopsy of Related Skin Growth, First Growth11102 | 62 | $100 |
| Destruction of Skin Growth, 1-14 Growths |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dupilumabbrand: Dupixent Pen | 33 | — |
| Ketoconazole | 26 | 16 |
| Triamcinolone Acetonide | 23 | 15 |
| Tacrolimus | 18 | — |
| Metronidazole | 12 | — |
| Tretinoin | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-22
- Last updated
- 2013-02-05
Frequently asked questions
- What is Anna Chien's NPI number?
- Anna Chien's National Provider Identifier (NPI) is 1538286059, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anna Chien's specialty?
- Anna Chien is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Anna Chien located?
- Anna Chien's practice location on file with NPPES is 600 N Wolfe St, Baltimore, MD 21287-0005.
- What is Anna Chien's phone number?
- The practice phone number listed in the NPPES registry for Anna Chien is (410) 955-5933.
- Does Anna Chien accept Medicare?
- Anna Chien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anna Chien's NPI active?
- Yes — Anna Chien's NPI (1538286059) is active in the NPPES registry as of the last update on 2013-02-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.