Cassie Chan, MD
NPI 1407345499 · Neuromuscular Medicine (Psychiatry & Neurology) Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cassie Chan, MD is a Neuromuscular Medicine (Psychiatry & Neurology) Physician provider in San Antonio, TX (NPI 1407345499).
Provider details
- NPI number
- 1407345499
- Entity type
- Individual
- Primary specialty
- Neuromuscular Medicine (Psychiatry & Neurology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- U3815 (TX)
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
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
429 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) |
|---|---|---|
| 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 | 115 | $16 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 98 | $173 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Limited Study95885 | 60 | $56 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 53 | $205 |
| Nerve Conduction, 9-10 Studies95911 | 33 | $196 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Edaravonebrand: Radicava Ors | 86 | 19 |
| Gabapentin | 76 | 25 |
| Riluzole | 61 | 21 |
| Pyridostigmine Bromide | 58 | 19 |
| Mycophenolate Mofetil | 56 | 12 |
| Mirtazapine | 53 | 14 |
| Prednisone | 45 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$397 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
Registry dates
- Enumerated
- 2018-05-04
- Last updated
- 2023-11-13
- Certified
- 2023-11-13
Frequently asked questions
- What is Cassie Chan's NPI number?
- Cassie Chan's National Provider Identifier (NPI) is 1407345499, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassie Chan's specialty?
- Cassie Chan is listed in the NPPES registry with a primary specialty of Neuromuscular Medicine (Psychiatry & Neurology) Physician (Allopathic & Osteopathic Physicians).
- Where is Cassie Chan located?
- Cassie Chan's practice location on file with NPPES is 8300 Floyd Curl Dr Fl 8, San Antonio, TX 78229-3931.
- What is Cassie Chan's phone number?
- The practice phone number listed in the NPPES registry for Cassie Chan is (210) 450-9700.
- Does Cassie Chan accept Medicare?
- Cassie Chan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cassie Chan's NPI active?
- Yes — Cassie Chan's NPI (1407345499) is active in the NPPES registry as of the last update on 2023-11-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.