PATRICK TWOHIG
NPI 1407377955
Internal Medicine - Gastroenterology in Rochester, NY

Q: What is Patrick Twohig's NPI number?

The NPI number for Patrick Twohig is 1407377955. It was assigned to this individual provider in the NPPES registry on July 5, 2017.

Q: What is Patrick Twohig'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 Patrick Twohig was last updated on November 17, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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 July 05, 2017PECOS EnrolledAccepts Medicare Assignment

95.52/100

CMS Quality Rating

601 ELMWOOD AVE., BOX MED, ROCHESTER, NY 14642(585) 275-4711(585) 276-0101 Get Directions Write a Review

NPPES record last updated: November 17, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 17, 2023, Jul 5, 2017 (2 updates tracked since 2017).

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About Patrick Twohig NPPES

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

PATRICK TWOHIG (NPI 1407377955) is an individual gastroenterology provider in Rochester, New York, licensed in New York (321552) and active in the NPI registry since July 2017. He is enrolled in Medicare PECOS, is affiliated with F F Thompson Hospital, and is a graduate of Other (2017).

NPPES Registry Identity

NPI1407377955

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NamePATRICK TWOHIG

Location Address601 ELMWOOD AVE., BOX MEDRochester, NY 14642-0001

Mailing Address601 Elmwood Ave Box MedRochester, NY 14642-0001 · (585) 275-4711

Phone(585) 275-4711

Fax(585) 276-0101

Sole ProprietorYes

Medical School CMSOtherGraduated 2017

Enumeration DateJuly 5, 2017

Last NPPES UpdateNovember 17, 20232 updates tracked since enumeration

NPPES CertifiedNovember 17, 2023

✔ NPI 1407377955 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 NY · 321552

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.

601 ELMWOOD AVE., Rochester, NY 14642

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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

Patrick Twohig 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 ID4183990781

PECOS Enrollment IDI20230725002171

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

Medicare enrollment records show Patrick Twohig reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Gastrointestinal Group

Same address

Gastroenterology

601 ELMWOOD AVE, BOX MED
Rochester, NY 14642

Reassigned Medicare billing, New York enrollment
71 clinicians in this Medicare group

NPI 1114977048 (585) 275-4711

University Of Rochester

Same address

General Acute Care Hospital

601 ELMWOOD AVE, BOX 684
Rochester, NY 14642

Reassigned Medicare billing, New York enrollment
1,624 clinicians in this Medicare group

NPI 1346285657 (585) 275-2100

Highland Hospital Of Rochester

1.2 mi

Internal Medicine

1000 SOUTH AVE
Rochester, NY 14620

Reassigned Medicare billing, New York enrollment
303 clinicians in this Medicare group

NPI 1376820241 (585) 473-2200

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 12

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.

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

37 services36 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.

24 services24 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.

22 services18 patients

22 services22 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

19 services14 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.

18 services16 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.

16 services16 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.

15 services15 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

15 services14 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.

15 services14 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.

13 services13 patients

Biopsy of large bowel using a flexible endoscope 45380

12 services12 patients

Hospital Affiliations CMS Care Compare 3

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

F F Thompson Hospital

Acute Care Hospitals · Canandaigua, NY

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330074

Location350 Parrish StreetCanandaigua, NY 14424 · Ontario County

Emergency services Birthing friendly

Highland Hospital

Acute Care Hospitals · Rochester, NY

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330164

Location1000 South AvenueRochester, NY 14617 · Monroe County

Emergency services Birthing friendly

Strong Memorial Hospital

Acute Care Hospitals · Rochester, NY

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330285

Location601 Elmwood AveRochester, NY 14642 · Monroe County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14642 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

$126.40 typical visit price

range $54.87 – $166.88

Typical copayment $31.60 (range $13.71 – $41.72)

Most-billed visit code 99204

Established Patient

$97.08 typical visit price

range $17.54 – $136.14

Typical copayment $24.27 (range $4.38 – $34.03)

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.

95.52/100

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

Scored as part of a group practice

Quality

75.49

Promoting Interoperability

100

Improvement Activities

Cost

76.25

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. YICHUN LIN M.D.

Anesthesiology