NPPES file of Aug 9, 2026

Soonbok Grace Woo, M.D.

Gastroenterology Physician · Rockville, MD

Soonbok Grace Woo, M.D. is a gastroenterology physician with a practice address in Rockville, Maryland, and NPI 1285672105, issued on Jun 3, 2006. Check the license (Maryland MD0056234, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1285672105
Name
Soonbok Grace Woo
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
MD0056234 MD
Self-reported in NPPES; status is on the state search
Practice location
1201 Seven Locks RD, Rockville, MD 20854
Phone
(301) 762-5020
Enumerated
Jun 3, 2006
Record last updated
May 16, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(301) 294-7569
Medicaid ID
405368101 MD
Medicare enrollment
Enrolled (PECOS I20040929000269); accepts Medicare assignment
Medical or professional school
University Of Maryland School Of Medicine, 1997
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1201 Seven Locks RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ira Berger, MDInternal Medicine Physician1013913284
  2. Jesse BrandStudent in an Organized Health Care Education/Training Program1174817498
  3. Sara BrooksDermatology Physician1811154057
  4. Ezra Cohen, M.D.Neurology Physician1669400016
  5. Kelly Cowen, MDFamily Medicine Physician1225033731
  6. Carole Dean, LMTMassage Therapist1811350994

Verify Soonbok Grace Woo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license MD0056234
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

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19% fewer Medicare Part D claims than the average gastroenterology physician in 2024

653 Medicare Part D claims for 266 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.

  1. Soonbok Woo653
  2. Specialty average811

Most prescribed

  1. Omeprazole212 claims
  2. Sod Sulf-Potass Sulf-Mag Sulf65 claims
  3. Famotidine48 claims
  4. Clenpiq27 claims
  5. Linzess27 claims
  6. Pantoprazole Sodium24 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: $207.26

10 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Soonbok Woo$207.26
  2. Specialty average$5,015.95

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

  1. Privia Medical Group, LLCRockville, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Soonbok Grace Woo among 505 gastroenterology physician records in Maryland

Soonbok Grace Woo, M.D. is one of 505 gastroenterology physician records with a practice address in Maryland. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.

  • NPI issued2006 · 16% of these records are older, 46% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1997 · median 2002 among the 344 with a school on file
  • Record last updated2012 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Maryland

There are 505 gastroenterology physician records in Maryland.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. William Steinberg, MDRockville, MD 208541962408054
  2. Thomas Garvey III, MDRockville, MD 208521366501066
  3. Sanford Richman, MDNorth Bethesda, MD 208521154475697
  4. Michael Weinstein, M.D.Rockville, MD 208521881653012
  5. Soorya Aggarwal, DORockville, MD 208501649706193
  6. Brian Ciampa, M.D.Rockville, MD 208501912294463
  7. Scott Friedberg, MDRockville, MD 208501205363280
  8. Jeffrey Kim, M.D.Rockville, MD 208501366820409

Common questions

What is Soonbok Grace Woo, M.D.'s NPI number?

Soonbok Grace Woo, M.D.'s National Provider Identifier (NPI) is 1285672105, issued on Jun 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Soonbok Grace Woo, M.D. located?

The NPPES record lists a practice address at 1201 Seven Locks RD, Rockville, MD, 20854. Phone: (301) 762-5020. Providers update this record themselves, so call before visiting.

How can I verify Soonbok Grace Woo, M.D.'s license?

NPPES lists Maryland license number MD0056234, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Soonbok Grace Woo, M.D. prescribe under Medicare Part D?

In 2024, Soonbok Grace Woo, M.D. had 653 Medicare Part D claims for 266 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.