DR. WILLIAM COLIN GALLAHAN M.D.
NPI 1508040213
Internal Medicine in Winston Salem, NC

Q: What is William Gallahan's NPI number?

The NPI number for William Gallahan is 1508040213. It was assigned to this individual provider in the NPPES registry on December 18, 2007.

Q: What is William Gallahan's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for William Gallahan was last updated on May 5, 2010. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since December 18, 2007PECOS EnrolledAccepts Medicare Assignment

83.2/100

CMS Quality Rating

WAKE FOREST UNIVERSITY HEALTH SCIENCES, MEDICAL CENTER BOULEVARD, WINSTON SALEM, NC 27157(336) 716-2255 Get Directions Write a Review

NPPES record last updated: May 5, 2010. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Dr. William Colin Gallahan M.d. NPPES

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

DR. WILLIAM COLIN GALLAHAN M.D. (NPI 1508040213) is an individual internal medicine provider in Winston Salem, North Carolina, licensed in North Carolina (2010-00678) and active in the NPI registry since December 2007. He is enrolled in Medicare PECOS, is affiliated with John Randolph Medical Center, and is a graduate of University Of Virginia School Of Medicine (2004).

NPPES Registry Identity

NPI1508040213

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. WILLIAM COLIN GALLAHANCredential: M.D.

Location AddressWAKE FOREST UNIVERSITY HEALTH SCIENCES, MEDICAL CENTER BOULEVARDWinston Salem, NC 27157-0001

Mailing AddressMedical Center BlvdWinston Salem, NC 27157-0001 · (336) 716-2255

Phone(336) 716-2255

Sole ProprietorNo

Medical School CMSUniversity Of Virginia School Of MedicineGraduated 2004

Enumeration DateDecember 18, 2007

Last NPPES UpdateMay 5, 2010

✔ NPI 1508040213 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in NC · 2010-00678

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

WAKE FOREST UNIVERSITY HEALTH SCIENCES, Winston Salem, NC 27157

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. William Colin Gallahan 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 ID9133250004

PECOS Enrollment IDI20110616000644

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.

Areas of Expertise CMS Part B claims 16

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.

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.

261 services261 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.

162 services139 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.

153 services151 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.

145 services125 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.

133 services133 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

90 services88 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.

86 services86 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

68 services47 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.

42 services42 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.

38 services38 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.

36 services36 patients

Complete ultrasound scan of abdomen 76700

A complete ultrasound scan of the abdomen is a non-invasive imaging procedure. It uses sound waves to produce images of the organs in your abdomen, such as the liver, gallbladder, spleen, pancreas, and kidneys. It helps in diagnosing, monitoring, and planning treatments.

29 services26 patients

Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm 43249

This procedure involves using a flexible tube with a camera, called an endoscope, to gently expand narrowed areas in your esophagus, stomach, or upper small bowel. A small balloon is inflated, making it easier for food and liquid to pass through. It's safe and effective.

25 services24 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

22 services21 patients

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

14 services14 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

Hospital Affiliations CMS Care Compare 5

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

John Randolph Medical Center

Acute Care Hospitals · Hopewell, VA

3/5 CMS rating

OwnershipProprietary

CMS Certification Number490020

Location411 West Randolph RoadHopewell, VA 23860 · Hopewell City County

Emergency services

Bon Secours St Marys Hospital

Acute Care Hospitals · Richmond, VA

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number490059

Location5801 Bremo RdRichmond, VA 23226 · Richmond City County

Emergency services Birthing friendly

Cjw Medical Center

Acute Care Hospitals · Richmond, VA

4/5 CMS rating

OwnershipProprietary

CMS Certification Number490112

Location7101 Jahnke RoadRichmond, VA 23235 · Chesterfield County

Emergency services

Henrico Doctors' Hospital

Acute Care Hospitals · Richmond, VA

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number490118

Location1602 Skipwith RoadRichmond, VA 23229 · Henrico County

Emergency services

Bon Secours St Francis Medical Center

Acute Care Hospitals · Midlothian, VA

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number490136

Location13710 St Francis BoulevardMidlothian, VA 23114 · Chesterfield County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 27157 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

$125.01 typical visit price

range $54.12 – $165.09

Typical copayment $31.25 (range $13.53 – $41.27)

Most-billed visit code 99204

Established Patient

$95.94 typical visit price

range $17.21 – $134.61

Typical copayment $23.98 (range $4.30 – $33.65)

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.

83.2/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

82.44

Promoting Interoperability

100

Improvement Activities

Cost

61.55

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Other Providers at the Same Location NPPES 6

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

DR. VIPUL AGGARWAL M.D.

Internal Medicine (Gastroenterology)

WAKE FOREST UNIVERSITY HEALTH SCIENCES, MEDICAL CENTER BLVD
WINSTON SALEM, NC 27157

Forsyth County (336) 713-7777

DR. IQBAL SINGH M.D.

Urology

WAKE FOREST UNIVERSITY HEALTH SCIENCES, MEDICAL CENTER BOULEVARD, DEPARTMENT OF UROLOGY
WINSTON SALEM, NC 27157

Forsyth County (336) 716-4195

JENNIFER L HANNUM MD

Emergency Medicine

WAKE FOREST UNIVERSITY HEALTH SCIENCES, MEDICAL CENTER BOULEVARD
WINSTON SALEM, NC 27157

Forsyth County (336) 716-2255

WAKE FOREST BAPTIST HEALTH

General Acute Care Hospital

WAKE FOREST UNIVERSITY HEALTH SCIENCES, MEDICAL CENTER BLVD
WINSTON SALEM, NC 27157

Forsyth County (336) 716-3182

DR. SARAH BELLER MD

Student in an Organized Health Care Education/Training Program

WAKE FOREST UNIVERSITY HEALTH SCIENCES, MEDICAL CENTER BOULEVARD
WINSTON SALEM, NC 27157

Forsyth County (336) 716-2694

DR. ALI MOFIDI MD

Orthopaedic Surgery

WAKE FOREST UNIVERSITY HEALTH SCIENCES
WINSTON SALEM, NC 27157

Forsyth County (336) 716-2255

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 William Gallahan's NPI number?

The NPI number for William Gallahan is 1508040213. It was assigned to this individual provider in the NPPES registry on December 18, 2007.

Where is William Gallahan located?

William Gallahan practices at Wake Forest University Health Sciences Medical Center Boulevard, Winston Salem, NC 27157. The listed phone number is (336) 716-2255.

What is William Gallahan's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is William Gallahan enrolled in Medicare?

Yes. William Gallahan 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.

Is William Gallahan affiliated with any hospitals?

According to CMS data, William Gallahan is affiliated with John Randolph Medical Center, Bon Secours St Marys Hospital, Cjw Medical Center, Henrico Doctors' Hospital and Bon Secours St Francis Medical Center.

When was this NPI record last updated?

The NPPES record for William Gallahan was last updated on May 5, 2010. NPI Profile syncs with the weekly NPPES data releases published by CMS.