JOHN J O'CONNOR D.O.
NPI 1649249806
Specialist in Sellersville, PA

Q: What is John O'connor's NPI number?

The NPI number for John O'connor is 1649249806. It was assigned to this individual provider in the NPPES registry on March 17, 2006.

Q: What is John O'connor's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Q: When was this NPI record last updated?

The NPPES record for John O'connor was last updated on September 6, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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 March 17, 2006PECOS EnrolledAccepts Medicare Assignment

817 LAWN AVE, SELLERSVILLE, PA 18960(215) 257-5071(215) 257-4378 Get Directions Write a Review

NPPES record last updated: September 6, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 6, 2019, Mar 5, 2018 (2 updates tracked since 2018).

On this page

About John J O'connor D.o. NPPES

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

JOHN J O'CONNOR D.O. (NPI 1649249806) is an individual specialist in Sellersville, Pennsylvania, licensed in Pennsylvania (OS008988L) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Grand View Health, and maintains a secondary practice location in Lansdale.

NPPES Registry Identity

NPI1649249806

Entity TypeIndividualMale

Primary Taxonomy174400000X

Provider Legal NameJOHN J O'CONNORCredential: D.O.

Location Address817 LAWN AVESellersville, PA 18960-1579

Mailing Address815 Sumneytown Pike Ste 210Lansdale, PA 19446-5390 · (215) 257-5071 · Fax (215) 257-1801

Phone(215) 257-5071

Fax(215) 257-4378

Sole ProprietorYes

Medical School CMSOtherGraduated 1995

Enumeration DateMarch 17, 2006

Last NPPES UpdateSeptember 6, 20192 updates tracked since enumeration

✔ NPI 1649249806 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in PA · OS008988L

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

817 LAWN AVE, Sellersville, PA 18960

Open in Google Maps ↗

Secondary Practice Location 1

Location 1815 Sumneytown Pike Ste 210Lansdale, PA 19446-5390 · Phone (215) 257-5071 · Fax (215) 257-1801

Other Identifiers 1

Medicaid07705099PA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware.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

John J O'connor D.o. 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 ID6608894282

PECOS Enrollment IDI20120215000316

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 John O'connor reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The Endoscopy Center LLC

Same address

Clinic/Center

817 LAWN AVE
Sellersville, PA 18960

Reassigned Medicare billing, Pennsylvania enrollment
3 clinicians in this Medicare group

NPI 1023006079 (215) 453-3050

Regional Gastroenterology Associates Of Lancaster, Ltd.

58 mi

Gastroenterology

2112 HARRISBURG PIKE STE 202
Lancaster, PA 17601

Reassigned Medicare billing, Pennsylvania enrollment
343 clinicians in this Medicare group

NPI 1154422806 (717) 869-4600

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 15

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.

Injection, vedolizumab, intravenous, 1 mg J3380

Vedolizumab is a medication given via injection. It's used to treat certain bowel conditions (such as Crohn's disease, ulcerative colitis) by reducing inflammation. It works by blocking a certain protein that causes this inflammation.

4,500 services12 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.

264 services226 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.

147 services141 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.

126 services113 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.

102 services101 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.

94 services94 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.

71 services71 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

68 services65 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.

35 services35 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.

35 services33 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.

33 services31 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.

21 services21 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.

20 services19 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.

18 services17 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

16 services13 patients

Hospital Affiliations CMS Care Compare 5

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

Grand View Health

Acute Care Hospitals · Sellersville, PA

5/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number390057

Location700 Lawn AvenueSellersville, PA 18960 · Bucks County

Emergency services

Phoenixville Hospital

Acute Care Hospitals · Phoenixville, PA

3/5 CMS rating

OwnershipProprietary

CMS Certification Number390127

Location140 Nutt RoadPhoenixville, PA 19460 · Chester County

Emergency services Birthing friendly

Bryn Mawr Hospital

Acute Care Hospitals · Bryn Mawr, PA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390139

Location130 South Bryn Mawr AveBryn Mawr, PA 19010 · Montgomery County

Emergency services Birthing friendly

Paoli Hospital

Acute Care Hospitals · Paoli, PA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390153

Location255 West Lancaster AvenuePaoli, PA 19301 · Chester County

Emergency services Birthing friendly

Einstein Medical Center Montgomery

Acute Care Hospitals · East Norriton, PA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390329

Location559 West Germantown PikeEast Norriton, PA 19403 · Montgomery County

Emergency services

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

Colorectal Cancer Screening

Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer

100%251 patients5/55-star benchmark: 100%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…

99%374 patients4/55-star benchmark: 100%

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.

KATHLEEN A KUCER, MDPC

Dermatology (Procedural Dermatology)

817 LAWN AVE
SELLERSVILLE, PA 18960

Bucks County (215) 257-0196

THE ENDOSCOPY CENTER LLC

Clinic/Center

817 LAWN AVE
SELLERSVILLE, PA 18960

Bucks County (215) 453-3050

LEAH G WEIDEMOYER CRNP

Nurse Practitioner (Adult Health)

817 LAWN AVE, SUITE 4
SELLERSVILLE, PA 18960

Bucks County (215) 257-8391

MATTHEW CULYBA

Internal Medicine

817 LAWN AVE, FALK CLINIC SUITE 700
SELLERSVILLE, PA 18960

Bucks County (215) 257-8450

DR. RAFAL W SAWICKI MD

Internal Medicine (Pulmonary Disease)

817 LAWN AVE, SUITE 4
SELLERSVILLE, PA 18960

Bucks County (215) 257-8391

KATHLEEN LUKASZEWSKI DO

Internal Medicine (Gastroenterology)

817 LAWN AVE
SELLERSVILLE, PA 18960

Bucks County (215) 257-5071

DR. ABBY IRENE HUANG M.D.

Internal Medicine (Infectious Disease)

817 LAWN AVE
SELLERSVILLE, PA 18960

Bucks County (215) 257-8450

JOHN STEPHEN DOBROTA M.D.

Internal Medicine (Gastroenterology)

817 LAWN AVE
SELLERSVILLE, PA 18960

Bucks County (215) 257-5071

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 John O'connor's NPI number?

The NPI number for John O'connor is 1649249806. It was assigned to this individual provider in the NPPES registry on March 17, 2006.

Where is John O'connor located?

John O'connor practices at 817 Lawn Ave, Sellersville, PA 18960. The listed phone number is (215) 257-5071.

What is John O'connor's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is John O'connor enrolled in Medicare?

Yes. John O'connor 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 organizations bill Medicare for John O'connor's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John O'connor reassigns Medicare benefits to 2 organizations: The Endoscopy Center LLC (Sellersville, PA) and Regional Gastroenterology Associates Of Lancaster, Ltd. (Lancaster, PA). Each 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 John O'connor's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does John O'connor accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list John O'connor 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 John O'connor affiliated with any hospitals?

According to CMS data, John O'connor is affiliated with Grand View Health, Phoenixville Hospital, Bryn Mawr Hospital, Paoli Hospital and Einstein Medical Center Montgomery.

When was this NPI record last updated?

The NPPES record for John O'connor was last updated on September 6, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.