Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

HWAN YOUNG YOO MD
NPI 1730173436
Internal Medicine - Gastroenterology in Salisbury, MD

Active since September 08, 2005PECOS Enrolled
1640 WOODBROOKE DR, SALISBURY, MD 21804(410) 912-5640 Get Directions Write a Review

NPPES record last updated: October 19, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 9, 2024, Aug 16, 2022, Sep 11, 2018 (3 updates tracked since 2018).

About Hwan Young Yoo Md NPPES

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

HWAN YOUNG YOO MD (NPI 1730173436) is an individual gastroenterology provider in Salisbury, Maryland, licensed in Maryland (D53514) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS, is affiliated with Owensboro Health Regional Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1730173436
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameHWAN YOUNG YOOCredential: MD
Location Address1640 WOODBROOKE DRSalisbury, MD 21804-8501
Mailing Address331 Newman Springs Rd Ste 220Red Bank, NJ 07701-5792 · (732) 807-0877 · Fax (201) 751-1680
Sole ProprietorNo
Medical School CMSOtherGraduated 1985
Enumeration DateSeptember 8, 2005
Last NPPES UpdateOctober 19, 20263 updates tracked since enumeration
NPPES CertifiedOctober 19, 2026
✔ NPI 1730173436 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Licenses✔ Licensed in MD · D53514✔ Licensed in IN · 01047833A✔ Licensed in KS · 04-54258
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
1640 WOODBROOKE DR, Salisbury, MD 21804

Secondary Practice Locations 3

Location 11500 SW 10th AveTopeka, KS 66604-1301 · Phone (785) 354-6000
Location 21945 State Route 33 # 07753Neptune, NJ 07753-4859 · Phone (732) 897-2770 · Fax (732) 897-3970
Location 3301 Saint Paul St, Suite 718Baltimore, MD 21202-2102 · Phone (410) 332-9356 · Fax (410) 783-5884

Other Identifiers 4

Other000000378813IN · Blue Cross Blue Shield
Medicaid1730173436MI
Other1417961137MI · Bcbsm - Bmh
Medicaid200373120FIN

Accepted 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

Hwan Young Yoo 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 ID3476542978
PECOS Enrollment IDI20110526000204, I20230518001158, I20241210001355
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

12

Medicare enrollment records show Hwan Yoo reassigns Medicare billing to 12 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Medical Specialty
100 E CARROLL ST
Salisbury, MD 21801
  • Reassigned Medicare billing, Maryland enrollment
  • 531 clinicians in this Medicare group
Clinic/Center
8028 RITCHIE HIGHWAY, SUITE 142
Pasadena, MD 21122
  • Reassigned Medicare billing, Maryland enrollment
  • 6 clinicians in this Medicare group
Psychiatry
5 GARRETT AVE
La Plata, MD 20646
  • Reassigned Medicare billing, Maryland enrollment
  • 966 clinicians in this Medicare group
Hematology & Oncology
227 SAINT PAUL PLACE, 4TH FLOOR
Baltimore, MD 21202
  • Reassigned Medicare billing, Maryland enrollment
  • 423 clinicians in this Medicare group
Hematology & Oncology
1734 YORK ROAD, LUTHERVILLE HEMATOLOGY AND ONCOLOGY SERVICES
Lutherville, MD 21093
  • Reassigned Medicare billing, Maryland enrollment
  • 22 clinicians in this Medicare group
Family Medicine
16312 MOUNT AIRY RD
Shrewsbury, PA 17361
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 1,902 clinicians in this Medicare group
Dietitian, Registered
12501 WILLOWBROOK RD FL 2
Cumberland, MD 21502
  • Reassigned Medicare billing, Maryland enrollment
  • 318 clinicians in this Medicare group
Otolaryngology
1501 S DIXIE ST
Horse Cave, KY 42749
  • Reassigned Medicare billing, Kentucky enrollment
  • 643 clinicians in this Medicare group
Family Medicine
3440 CHICAGO DR STE 105
Hudsonville, MI 49426
  • Reassigned Medicare billing, Michigan enrollment
  • 145 clinicians in this Medicare group
Family Medicine
221 S 6TH ST
Terre Haute, IN 47807
  • Reassigned Medicare billing, Indiana enrollment
  • 306 clinicians in this Medicare group

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

Areas of Expertise CMS Part B claims 15

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.
139 services102 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.
93 services93 patients
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.
90 services72 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
83 services83 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
73 services73 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
57 services57 patients

Hospital Affiliations CMS Care Compare 3

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

Owensboro Health Regional Hospital

Acute Care Hospitals · Owensboro, KY
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number180038
Location1201 Pleasant Valley RoadOwensboro, KY 42303 · Daviess County
Emergency services Birthing friendly

Mercy Medical Center Inc

Acute Care Hospitals · Baltimore, MD
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number210008
Location301 Saint Paul PlaceBaltimore, MD 21202 · Baltimore City County
Emergency services Birthing friendly

Holland Community Hospital

Acute Care Hospitals · Holland, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230072
Location602 Michigan AveHolland, MI 49423 · Ottawa County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21804 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
$133.05 typical visit price
range $57.99 – $175.57
Typical copayment $33.26 (range $14.49 – $43.89)
Most-billed visit code 99204
Established Patient
$102.11 typical visit price
range $18.66 – $143.02
Typical copayment $25.52 (range $4.66 – $35.75)
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.

Other Providers at the Same Location NPPES 4

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

Internal Medicine (Gastroenterology)
1640 WOODBROOKE DR
SALISBURY, MD 21804
Internal Medicine
1640 WOODBROOKE DR
SALISBURY, MD 21804
Nurse Practitioner (Family)
1640 WOODBROOKE DR
SALISBURY, MD 21804
Internal Medicine (Gastroenterology)
1640 WOODBROOKE DR
SALISBURY, MD 21804

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 Hwan Yoo's NPI number?

The NPI number for Hwan Yoo is 1730173436. It was assigned to this individual provider in the NPPES registry on September 8, 2005.

Where is Hwan Yoo located?

Hwan Yoo practices at 1640 Woodbrooke Dr, Salisbury, MD 21804. The listed phone number is (410) 912-5640.

What is Hwan Yoo's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Hwan Yoo enrolled in Medicare?

Yes. Hwan Yoo 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 Hwan Yoo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hwan Yoo reassigns Medicare benefits to 12 organizations: Tidalhealth Specialty Care, LLC (Salisbury, MD), Anne Arundel Digestive Center (Pasadena, MD), University Of Maryland Community Medical Group, Inc. (La Plata, MD), St Paul Place Specialists, Inc. (Baltimore, MD), Lutherville Hematology And Oncology Services (Lutherville, MD) and 7 more organizations, listed in the Medicare section above. 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 Hwan Yoo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Hwan Yoo accept?

Health plans from Ambetter Health, Ambetter of Alabama, Ambetter of Tennessee, Anthem Blue Cross and Blue Shield and Blue Cross and Blue Shield of Alabama and 2 other insurers list Hwan Yoo 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 Hwan Yoo affiliated with any hospitals?

According to CMS data, Hwan Yoo is affiliated with Owensboro Health Regional Hospital, Mercy Medical Center Inc and Holland Community Hospital.

When was this NPI record last updated?

The NPPES record for Hwan Yoo was last updated on October 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 days 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.