Byung San Kwak, M.D.
Psychiatry Physician · Montgomery, AL
Byung San Kwak, M.D. is a psychiatry physician with a practice address in Montgomery, Alabama, and NPI 1073967782, issued on Apr 19, 2016. Check the license (Alabama 41865, as entered in NPPES) on the Alabama Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Byung San Kwak
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 41865 AL
Self-reported in NPPES; status is on the state search - Practice location
- 1331 Old Oak PL, Montgomery, AL 36117
- Phone
- (334) 746-5586
- Enumerated
- Apr 19, 2016
- Record last updated
- Aug 27, 2025
- Fax
- (800) 317-0547
- Medicare enrollment
- Enrolled (PECOS I20210312000208); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 517 in Alabama → Look up another NPI →
Verify Byung San Kwak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersAlabama Board of Medical Examiners
Search for license 41865Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.4 times the Medicare Part D claims of the average psychiatry physician in 2024
5,415 Medicare Part D claims for 458 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Trazodone Hcl630 claims
- Dextroamphetamine-Amphetamine404 claims
- Clonazepam384 claims
- Alprazolam343 claims
- Sertraline Hcl284 claims
- Bupropion Xl216 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: $839.01
48 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,693 providers of this specialty with any payment received $4,954.93 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.
Byung San Kwak among 517 psychiatry physician records in Alabama
Byung San Kwak, M.D. is one of 517 psychiatry physician records with a practice address in Alabama. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 79% of them.
- NPI issued2016 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 46% of these records are
- Graduated2012 · median 2004 among the 237 with a school on file
- Record last updated2025 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Alabama practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Alabama
There are 517 psychiatry physician records in Alabama.
All 517 in Alabama → Every provider in Montgomery → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Stephanie Calhoun, LPCMontgomery, AL 361171134174402
- George Demuth, MDMontgomery, AL 361171912994310
- William Freeman, M.D.Montgomery, AL 361171164462826
- Amin Gilani, M.D.Montgomery, AL 361171053674028
- David Hall, DOMontgomery, AL 361171154316305
- David Harwood, M.D.Montgomery, AL 361171841230885
- Eric Hedberg, MDMontgomery, AL 361171528002409
- Shawn Hubbard, RNMontgomery, AL 361171528076379
Common questions
What is Byung San Kwak, M.D.'s NPI number?
Byung San Kwak, M.D.'s National Provider Identifier (NPI) is 1073967782, issued on Apr 19, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Byung San Kwak, M.D. located?
The NPPES record lists a practice address at 1331 Old Oak PL, Montgomery, AL, 36117. Phone: (334) 746-5586. Providers update this record themselves, so call before visiting.
How can I verify Byung San Kwak, M.D.'s license?
NPPES lists Alabama license number 41865, as entered by the provider. Search the Alabama Board of Medical Examiners at https://www.albme.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Byung San Kwak, M.D. prescribe under Medicare Part D?
In 2024, Byung San Kwak, M.D. had 5,415 Medicare Part D claims for 458 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.