SOONBOK GRACE WOO M.D.
NPI 1285672105
Internal Medicine - Gastroenterology in Rockville, MD

Q: What is Soonbok Woo's NPI number?

The NPI number for Soonbok Woo is 1285672105. It was assigned to this individual provider in the NPPES registry on June 3, 2006.

Q: What is Soonbok Woo's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Soonbok Woo was last updated on May 16, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.

Active since June 03, 2006PECOS EnrolledAccepts Medicare Assignment

1201 SEVEN LOCKS RD, SUITE 111, ROCKVILLE, MD 20854(301) 762-5020(301) 294-7569 Get Directions Write a Review

NPPES record last updated: May 16, 2012. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Soonbok Grace Woo M.d. NPPES

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

SOONBOK GRACE WOO M.D. (NPI 1285672105) is an individual gastroenterology provider in Rockville, Maryland, licensed in Maryland (MD0056234) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, is affiliated with Adventist Healthcare Shady Grove Medical Center, and is a graduate of University Of Maryland School Of Medicine (1997).

NPPES Registry Identity

NPI1285672105

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameSOONBOK GRACE WOOCredential: M.D.

Location Address1201 SEVEN LOCKS RD, SUITE 111Rockville, MD 20854-2957

Mailing AddressPo Box 79632Baltimore, MD 21279-0632 · (301) 762-5020 · Fax (301) 309-3783

Phone(301) 762-5020

Fax(301) 294-7569

Sole ProprietorNo

Medical School CMSUniversity Of Maryland School Of MedicineGraduated 1997

Enumeration DateJune 3, 2006

Last NPPES UpdateMay 16, 2012

✔ NPI 1285672105 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in MD · MD0056234

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.

1201 SEVEN LOCKS RD, Rockville, MD 20854

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Other Identifiers 5

Medicare PING02416S01MD

Medicare PIN139453DC

Medicare PIN190095DC

Medicare UPINH32366MD

Medicaid405368101MD

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.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

Soonbok Grace Woo M.d. 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 ID7315916152

PECOS Enrollment IDI20040929000269

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 Reassignment

Medicare enrollment records show Soonbok Woo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Privia Medical Group, LLC

13 mi

Internal Medicine

950 N GLEBE RD STE 700
Arlington, VA 22203

Reassigned Medicare billing, District of Columbia enrollment
1,534 clinicians in this Medicare group

NPI 1013042480 (571) 366-8850

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 18

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.

228 services167 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.

150 services148 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.

97 services97 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.

82 services76 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

66 services53 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

64 services59 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

45 services45 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.

43 services43 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

33 services33 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

33 services31 patients

Measurement of hydrogen in breath to test for stomach and bowel symptoms 91065

This test involves breathing into a bag to measure hydrogen levels in your breath. High levels can indicate issues with food digestion or absorption in your stomach or intestines. It's non-invasive, painless, and helps diagnose certain gastrointestinal conditions.

31 services29 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

25 services22 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

22 services22 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

16 services16 patients

Breath test analysis for helicobacter pylori 83013

A breath test for Helicobacter pylori is a non-invasive procedure that helps detect bacteria causing stomach issues. You'll swallow a harmless substance containing a special carbon atom. If the bacteria are present, they'll release this atom in your breath, which can be detected.

14 services13 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

14 services14 patients

Administration of drug for helicobacter pylori 83014

Administering drugs for Helicobacter pylori involves taking a combination of antibiotics and proton pump inhibitors. This dual therapy helps to eliminate the bacteria from your stomach, reducing symptoms and preventing stomach ulcers or cancer.

13 services12 patients

Measurement c-reactive protein for detection of infection or inflammation 86140

C-reactive protein (CRP) test is a blood test that checks for signs of inflammation or infection in the body. High levels of CRP often suggest that there's inflammation or a bacterial infection. This test helps in monitoring and managing conditions like arthritis and heart disease.

11 services11 patients

Hospital Affiliations CMS Care Compare

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

Adventist Healthcare Shady Grove Medical Center

Acute Care Hospitals · Rockville, MD

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number210057

Location9901 Medical Center DriveRockville, MD 20850 · Montgomery County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20854 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

$147.85 typical visit price

range $65.18 – $194.86

Typical copayment $36.96 (range $16.29 – $48.71)

Most-billed visit code 99204

Established Patient

$113.72 typical visit price

range $21.40 – $158.88

Typical copayment $28.43 (range $5.35 – $39.72)

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.

Reported Quality Measures

e-Prescribing

At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.

96%2,413 patients4/55-star benchmark: 99%

Medication Reconciliation

The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.

100%1,050 patients5/55-star benchmark: 100%

Patient-Specific Education

The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.

52%1,575 patients3/55-star benchmark: 97%

Provide Patient Access

At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…

100%1,575 patients5/55-star benchmark: 100%

Secure Messaging

For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…

77%1,575 patients4/55-star benchmark: 89%

View, Download, or Transmit (VDT)

At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.

71%1,575 patients

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.

Other Providers at the Same Location NPPES 20

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

DR. IRA LAWRENCE BERGER MD

Internal Medicine

1201 SEVEN LOCKS RD, STE 111
ROCKVILLE, MD 20854

Montgomery County (301) 762-5020

DR. ALEXANDER N. KINNAIRD M.D.

Internal Medicine

1201 SEVEN LOCKS RD, SUITE 200
ROCKVILLE, MD 20854

Montgomery County (301) 652-5771

ALLIED PHARMACEUTICAL SERVICES

Pharmacy (Mail Order Pharmacy)

1201 SEVEN LOCKS RD
ROCKVILLE, MD 20854

Montgomery County (301) 309-0999

DHC OF WASHINGTON, L.L.C.

Physiological Laboratory

1201 SEVEN LOCKS RD, SUITE 100
ROCKVILLE, MD 20854

Montgomery County (301) 424-1781

RAHUL Y. PATEL M.D.

Internal Medicine

1201 SEVEN LOCKS RD, SUITE 111
ROCKVILLE, MD 20854

Montgomery County (301) 762-5020

DR. TERRI NMN ESTEROWITZ MD

Internal Medicine

1201 SEVEN LOCKS RD, SUITE 111
ROCKVILLE, MD 20854

Montgomery County (301) 762-5020

DR. WILLIAM HENRY SILVERMAN MD

Internal Medicine

1201 SEVEN LOCKS RD, STE 111
ROCKVILLE, MD 20854

Montgomery County (301) 762-5020

DR. MARK NEAL LEVY D.P.M.

Podiatrist (Foot Surgery)

1201 SEVEN LOCKS RD, STE 202
ROCKVILLE, MD 20854

Montgomery County (301) 762-4636

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 Soonbok Woo's NPI number?

The NPI number for Soonbok Woo is 1285672105. It was assigned to this individual provider in the NPPES registry on June 3, 2006.

Where is Soonbok Woo located?

Soonbok Woo practices at 1201 Seven Locks Rd Suite 111, Rockville, MD 20854. The listed phone number is (301) 762-5020.

What is Soonbok Woo's specialty?

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

Is Soonbok Woo enrolled in Medicare?

Yes. Soonbok Woo 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 organization bills Medicare for Soonbok Woo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Soonbok Woo reassigns Medicare benefits to Privia Medical Group, LLC (Arlington, VA). The 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 Soonbok Woo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Soonbok Woo accept?

Health plans from Oscar Health list Soonbok Woo 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 Soonbok Woo affiliated with any hospitals?

According to CMS data, Soonbok Woo is affiliated with Adventist Healthcare Shady Grove Medical Center.

When was this NPI record last updated?

The NPPES record for Soonbok Woo was last updated on May 16, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.