Diane Chan, M.D., PH.D.
NPI 1063755981 · Neurology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diane Chan, M.D., PH.D. is a Neurology Physician provider in Boston, MA (NPI 1063755981).
Provider details
- NPI number
- 1063755981
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
271 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 220 | $193 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 51 | $238 |
Typical Medicare-allowed amounts for these services range $193–$238 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 160 | 49 |
| Donepezil Hcl | 97 | 37 |
| Escitalopram Oxalate | 62 | 20 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa Er | 54 | 11 |
| Gabapentin | 46 | — |
| Primidone | 38 | — |
| Quetiapine Fumarate | 36 |
Practice location
Mailing address
Additional practice locations (1)
- 72 E Concord StEvans 124Boston, MA 02118-2307Phone: (617) 638-6551
Registry dates
- Enumerated
- 2013-03-28
- Last updated
- 2019-06-20
Frequently asked questions
- What is Diane Chan's NPI number?
- Diane Chan's National Provider Identifier (NPI) is 1063755981, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Chan's specialty?
- Diane Chan is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Diane Chan located?
- Diane Chan's practice location on file with NPPES is 55 Fruit Street, Boston, MA 02114.
- What is Diane Chan's phone number?
- The practice phone number listed in the NPPES registry for Diane Chan is (617) 726-5523.
- Does Diane Chan accept Medicare?
- Diane Chan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diane Chan's NPI active?
- Yes — Diane Chan's NPI (1063755981) is active in the NPPES registry as of the last update on 2019-06-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.