Cassie Naomi Chan, MD
Neuromuscular Medicine (Psychiatry & Neurology) Physician · San Antonio, TX
Cassie Naomi Chan, MD is a neuromuscular medicine (psychiatry & neurology) physician with a practice address in San Antonio, Texas, and NPI 1407345499, issued on May 4, 2018. Check the license (Texas U3815, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Cassie Naomi Chan
- Credential
- MD
- Primary taxonomy
- Neuromuscular Medicine (Psychiatry & Neurology) Physician 2084N0008X
- License number
- U3815 TX
Self-reported in NPPES; status is on the state search - Practice location
- 8300 Floyd Curl Dr FL 8, San Antonio, TX 78229
- Phone
- (210) 450-9700
- Enumerated
- May 4, 2018
- Record last updated
- Nov 13, 2023
- Fax
- (210) 450-6039
- Medicare enrollment
- Enrolled (PECOS I20230927002434); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At San Antonio, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neuromuscular medicine (psychiatry & neurology) physician records → All 20 in Texas → Look up another NPI →
Also registered at 8300 Floyd Curl Dr FL 8
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Muhammad Abdullah, MDNeurology Physician1033773247
- Ratna Bhavaraju-Sanka, M.DNeuromuscular Medicine (Psychiatry & Neurology) Physician1679786651
- Robin Brey, M.D.Neurology Physician1790892768
- Lorena Cardenas, PA-CPhysician Assistant1255896684
- Brittany Cerbone, PHDClinical Neuropsychologist1659010791
- Catherine Eaton, PHD, CCC-SLPSpeech-Language Pathologist1912633009
Verify Cassie Naomi Chan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license U3815Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average neuromuscular medicine (psychiatry & neurology) physician in 2024
752 Medicare Part D claims for 127 beneficiaries, against an average of 827 among the 258 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Radicava Ors86 claims
- Gabapentin76 claims
- Riluzole61 claims
- Pyridostigmine Bromide58 claims
- Mycophenolate Mofetil56 claims
- Mirtazapine53 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $396.85
3 payments; by number, the most common kind was food and beverage; the largest payer was Ucb, Inc. The 169 providers of this specialty with any payment received $11,922.98 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- University OF Texas Health Science Center AT San AntonioSan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cassie Naomi Chan among 20 neuromuscular medicine (psychiatry & neurology) physician records in Texas
Cassie Naomi Chan, MD is one of 20 neuromuscular medicine (psychiatry & neurology) physician records with a practice address in Texas. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 85% of them.
- NPI issued2018 · 85% of these records are older, 10% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 85% of these records are
- Graduated2018 · median 1999 among the 17 with a school on file
- Record last updated2023 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0008X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neuromuscular Medicine (Psychiatry & Neurology) Physician providers in Texas
There are 20 neuromuscular medicine (psychiatry & neurology) physician records in Texas.
All 20 in Texas → Every provider in San Antonio → Neuromuscular Medicine (Psychiatry & Neurology) Physician nationwide →
The 8 neuromuscular medicine (psychiatry & neurology) physician records with the nearest ZIP codes
- Ratna Bhavaraju-Sanka, M.DSan Antonio, TX 782291679786651
- Carlayne Jackson, M.D.San Antonio, TX 782291083620967
- Alejandro Tobon, MDSan Antonio, TX 782291386783306
- Matthew Wicklund, M.D.San Antonio, TX 782291255312161
- John Sladky, M.D.San Antonio, TX 782341215905252
- Yessar Hussain, M.D.Austin, TX 787591982852166
- Darine Kassar, M.D.Sugar Land, TX 774791902035686
- Ali Moussaoui, M.D.Houston, TX 770891114921905
Common questions
What is Cassie Naomi Chan, MD's NPI number?
Cassie Naomi Chan, MD's National Provider Identifier (NPI) is 1407345499, issued on May 4, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Cassie Naomi Chan, MD located?
The NPPES record lists a practice address at 8300 Floyd Curl Dr FL 8, San Antonio, TX, 78229. Phone: (210) 450-9700. Providers update this record themselves, so call before visiting.
How can I verify Cassie Naomi Chan, MD's license?
NPPES lists Texas license number U3815, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Cassie Naomi Chan, MD prescribe under Medicare Part D?
In 2024, Cassie Naomi Chan, MD had 752 Medicare Part D claims for 127 beneficiaries; the average among neuromuscular medicine (psychiatry & neurology) physician prescribers was 827. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.