Peter Chien, MD, PHD
NPI 1609089077 · Dermatology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Chien, MD, PHD is a Dermatology Physician provider in Boston, MA (NPI 1609089077).
Provider details
- NPI number
- 1609089077
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 247913 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,071 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 192 | $124 |
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 130 | $5 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 122 | $88 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 105 | $101 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 97 | $17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketoconazole | 160 | 66 |
| Tacrolimus | 135 | 76 |
| Dupilumabbrand: Dupixent Pen | 103 | 13 |
| Triamcinolone Acetonide | 87 | 60 |
| Ammonium Lactate | 60 | 30 |
| Metronidazole | 53 | 26 |
| Betamethasone Dipropionate | 51 | 28 |
| Mupirocin | 48 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$154 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 37 E 28th St Rm 304New York, NY 10016-7935Phone: (646) 820-1716Fax: (646) 820-1716
Registry dates
- Enumerated
- 2007-05-08
- Last updated
- 2024-09-16
- Certified
- 2024-09-16
Frequently asked questions
- What is Peter Chien's NPI number?
- Peter Chien's National Provider Identifier (NPI) is 1609089077, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Chien's specialty?
- Peter Chien is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Chien located?
- Peter Chien's practice location on file with NPPES is 330 Brookline Ave, Boston, MA 02215.
- What is Peter Chien's phone number?
- The practice phone number listed in the NPPES registry for Peter Chien is (617) 667-3753.
- Does Peter Chien accept Medicare?
- Peter Chien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Chien's NPI active?
- Yes — Peter Chien's NPI (1609089077) is active in the NPPES registry as of the last update on 2024-09-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.