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DANIEL DONG WOOK HYUN MD
NPI 1194726448
Psychiatry & Neurology - Neurology in San Antonio, TX

Active since August 09, 2005PECOS EnrolledAccepts Medicare AssignmentCLIA 45D1026207 · Waiver
65.73/100
CMS Quality Rating
3922 WISEMAN BLVD STE 304, SAN ANTONIO, TX 78251(210) 226-3326(210) 226-3371 Get Directions Write a Review

NPPES record last updated: March 21, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Daniel Dong Wook Hyun Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DANIEL DONG WOOK HYUN MD (NPI 1194726448) is an individual neurology provider in San Antonio, Texas, licensed in Texas (L3346) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through May 27, 2028, and is affiliated with Baptist Medical Center.

NPPES Registry Identity

NPI1194726448
Entity TypeIndividualMale
Primary Taxonomy2084N0400X
Provider Legal NameDANIEL DONG WOOK HYUNCredential: MD
Location Address3922 WISEMAN BLVD STE 304San Antonio, TX 78251-1685
Mailing Address31 Stonewall BndSan Antonio, TX 78256-1618 · (210) 226-3326 · Fax (210) 226-3371
Phone(210) 226-3326
Fax(210) 226-3371
Sole ProprietorNo
Medical School CMSOtherGraduated 1989
Enumeration DateAugust 9, 2005
Last NPPES UpdateMarch 21, 2023
NPPES CertifiedMarch 21, 2023
✔ NPI 1194726448 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License✔ Licensed in TX · L3346
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
3922 WISEMAN BLVD STE 304, San Antonio, TX 78251
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Other Identifiers 1

Medicaid164716601TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Daniel Dong Wook Hyun Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3870589773
PECOS Enrollment IDI20040424000432
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Daniel Hyun reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Daniel Hyun Mdpa
Same address
Neurology
3922 WISEMAN BLVD STE 304
San Antonio, TX 78251
  • Reassigned Medicare billing, Texas enrollment
NPI 1902087240 (210) 226-3326
Sheth, MD, P.A.
276 mi
Neurology
5375 COIT RD STE 130
Frisco, TX 75035
  • Reassigned Medicare billing, Texas enrollment
  • 34 clinicians in this Medicare group
NPI 1235329517 (214) 619-1910

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 45D1026207

Daniel Hyun MD · San Antonio, TX
Active · expires May 27, 2028
CLIA Number45D1026207
Laboratory TypePhysician Office
Certificate Effective DateMay 28, 2026
Certificate Expiration DateMay 27, 2028
Laboratory DirectorDaniel Hyun
Laboratory Phone(210) 226-3326
Laboratory LocationDaniel Hyun MD3922 Wiseman Blvd, Suite 304, San Antonio, TX 78251
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 11

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
644 services377 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
142 services142 patients
Assessment of and care planning for patient with impaired thought processing, typically 60 minutes 99483
This service involves a thorough evaluation of your thought processes, which may be impacting your daily life. In a typical 50-minute session, a healthcare professional will assess your cognitive abilities, identify any areas of concern, and develop a personalized care plan to help improve your mental function.
122 services122 patients
Needle measurement of electrical activity in arm or leg muscles, complete study 95886
This procedure, known as an electromyography (EMG), involves inserting a small needle into your arm or leg muscles to measure their electrical activity. This complete study helps diagnose issues with nerves or muscles, providing valuable data for your treatment plan.
78 services36 patients
Measurement of brain wave activity (eeg), awake and asleep 95819
The measurement of brain wave activity, known as an EEG, records the brain's electrical signals. It's performed when you're awake and asleep to monitor your brain's functioning. It helps in diagnosing conditions like epilepsy, sleep disorders, and other neurological issues.
43 services43 patients
Measurement of brain wave activity (eeg), digital analysis 95957
The measurement of brain wave activity, or EEG, involves recording and analyzing electrical signals from your brain. Small sensors are placed on the scalp to capture these signals. This digital analysis helps in diagnosing conditions like epilepsy or sleep disorders.
43 services43 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Baptist Medical Center

Acute Care Hospitals · San Antonio, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number450058
Location111 Dallas StreetSan Antonio, TX 78205 · Bexar County
Emergency services Birthing friendly

Methodist Hospital

Acute Care Hospitals · San Antonio, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number450388
Location7700 Floyd Curl DrSan Antonio, TX 78229 · Bexar County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78251 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

65.73/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality89.26
Promoting Interoperability0
Improvement Activities40

Reported Quality Measures

Dementia: Cognitive Assessment
54%105 patients
Documentation of Current Medications in the Medical Record
99%3,838 patients4/55-star benchmark: 100%
e-Prescribing
99%1,403 patients4/55-star benchmark: 100%
Falls: Plan of Care
100%116 patients
Falls: Screening for Future Fall Risk
100%1,384 patients5/55-star benchmark: 100%
Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented
22%3,731 patients2/55-star benchmark: 61%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Patients combinedPopulations: 89% · 1,140 patients
Patients screened: 89% · 1,140 patients
100%85 patients5/55-star benchmark: 100%
Provide Patients Electronic Access to Their Health Information
0%908 patients1/55-star benchmark: 100%
Support Electronic Referral Loops By Sending Health Information
0%312 patients1/55-star benchmark: 100%
Use of High-Risk Medications in Older Adults
Lower rates are better for this measure.
Patients appropriateDiagnosis: 4% · 1,422 patients
Patients totalRate: 5% · 1,426 patients
1%1,426 patients4/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
3 suppliers13 claims13 services$71.84 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
3 suppliers13 claims39 services$27.59 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
3 suppliers13 claims78 services$1.75 avg. paid by Medicare
Continuous positive airway pressure (cpap) device E0601
DME-Other DME · category DE001N
1 supplier17 claims17 services$24.78 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DANIEL HYUN MDPA
Psychiatry & Neurology (Neurology)
3922 WISEMAN BLVD STE 304
SAN ANTONIO, TX 78251
Bexar County (210) 226-3326

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Daniel Hyun's NPI number?

The NPI number for Daniel Hyun is 1194726448. It was assigned to this individual provider in the NPPES registry on August 9, 2005.

Where is Daniel Hyun located?

Daniel Hyun practices at 3922 Wiseman Blvd Ste 304, San Antonio, TX 78251. The listed phone number is (210) 226-3326.

What is Daniel Hyun's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Daniel Hyun enrolled in Medicare?

Yes. Daniel Hyun is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Daniel Hyun's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Daniel Hyun reassigns Medicare benefits to 2 organizations: Daniel Hyun Mdpa (San Antonio, TX) and Sheth, MD, P.A. (Frisco, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Daniel Hyun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Does Daniel Hyun hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 45D1026207) is associated with this NPI, valid through May 27, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Daniel Hyun accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 1 other insurer list Daniel Hyun as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Daniel Hyun affiliated with any hospitals?

According to CMS data, Daniel Hyun is affiliated with Baptist Medical Center and Methodist Hospital.

When was this NPI record last updated?

The NPPES record for Daniel Hyun was last updated on March 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.