What is Byung Soo Yoo's NPI number?

Byung Soo Yoo's National Provider Identifier (NPI) is 1639664063, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Byung Soo Yoo's specialty?

Byung Soo Yoo is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).

Where is Byung Soo Yoo located?

Byung Soo Yoo's practice location on file with NPPES is 10110 Molecular Dr Ste 111, Rockville, MD 20850-7538.

What is Byung Soo Yoo's phone number?

The practice phone number listed in the NPPES registry for Byung Soo Yoo is (301) 838-4224.

Does Byung Soo Yoo accept Medicare?

Byung Soo Yoo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Byung Soo Yoo's NPI active?

Yes — Byung Soo Yoo's NPI (1639664063) is active in the NPPES registry as of the last update on 2025-08-13.

IndividualActiveAccepts Medicare

Byung Soo Yoo, MD

NPI 1639664063 · Gastroenterology Physician · Rockville, MD

Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Byung Soo Yoo, MD is a Gastroenterology Physician provider in Rockville, MD (NPI 1639664063).

Provider details

NPI number: 1639664063
Entity type: Individual
Primary specialty: Gastroenterology PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: D0102656 (MD)

Specialties & taxonomies

Gastroenterology PhysicianPrimary207RG0100XLicense D0102656 (MD)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(72/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure33% of score
7 yrs in NPPES registry
Profile completeness33% of score
100% of core fields populated
Practice footprint20% of score
1 documented practice location
Open Payments transparency13% of score
Has Open Payments disclosures (2024)

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 methodology.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.

Drug	Part D claims (2024)	Beneficiaries
Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G	16	16

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$103 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

10110 Molecular Dr Ste 111

Rockville, MD 20850-7538

Phone: (301) 838-4224

Street-level locationGet directions

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Mailing address