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Active NPI 1912007220 Individual Practitioner Male Practitioner

Dr. John D Oholleran , MD

Surgery • Oregon City, OR

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. John Oholleran, MD is a certified Surgery practicing in Oregon City, OR. With approximately 39 years of clinical experience since graduating from University Of Nebraska College Of Medicine in 1987, Dr. Oholleran delivers high-quality medical care to the local community at 1510 DIVISION ST STE 210.

Dr. Oholleran is affiliated with Providence Health And Services Oregon and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, initial hospital care with moderate level of medical decision making, if using time, at least, follow-up hospital inpatient care per day. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1510 Division St Ste 210

Oregon City, OR 970451599

Telephone 5037236525
Associated Practice Facility / Clinic
🏢 Willamette Falls Hospital Facility NPI 1942454087

Medicare Profile & Education

Medical School

University Of Nebraska College Of Medicine

Graduation Year

1987

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Oregon City, OR

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
39 Yrs +13.8 yrs vs City Avg
City Avg: 25.2 Yrs
State Avg: 23.3 Yrs
Regional Practice Density
10 Specialists

Practicing in Oregon City, OR (555 Statewide)

Telehealth Adoption Rate
10.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
71.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Oholleran (39 Years) 39 Yrs
Oregon City Specialty Average (25.2 Years) 25.2 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
27 12 $264.00 $78.21
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
16 16 $581.00 $163.59

Medical Specialties & State Licenses

CMS Verified: 2022-06-06
Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License OR MD215189

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Surgery

NUCC Taxonomy Code: 208600000X

State License CA 6073614

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Surgery

NUCC Taxonomy Code: 208600000X

State License CA G73614

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Surgery

NUCC Taxonomy Code: 208600000X

State License IL 036150765

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Hospital & Practice Group Affiliations

Providence Health And Services Oregon

1510 Division St, Oregon City, OR 970451599

Phone: 5037236525

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

10 Associated Practitioners
NPI 1053678284

MDMPH

Lynsey Bingham , APRN-FNP

Nurse Practitioner

NPI 1346871662

APRNFNP

NPI 1477538064

Doctor of Medicine (M.D.)

NPI 1508976473

Doctor of Medicine (M.D.)

NPI 1629168646

Doctor of Medicine (M.D.)

NPI 1659735751

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

10 Historical Events
📍
Updated Practice Location February 02, 2024

Registered at 1510 DIVISION ST STE 210, OREGON CITY, OR 970451599 (Tel: 5037236525)

📍
Updated Business Mailing Address February 02, 2024

Registered at PO BOX 3158, PORTLAND, OR 972083158 (Tel: 5032156494)

📍
Updated Practice Location November 05, 2019

Registered at 101 E MILLER RD, STERLING, IL 610811252 (Tel: 8156254790)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) November 05, 2019

Surgery (License #6073614 in CA)

NPI Profile Active March 22, 2016

NPI status registered as active in NPPES database

📍
Updated Practice Location March 22, 2016

Registered at 290 REDWOOD SHORES PKWY, REDWOOD CITY, CA 940651173 (Tel: 6508532135)

📍
Updated Business Mailing Address March 22, 2016

Registered at 2350 W. EL CAMINO REAL, 2ND FLOOR, MOUNTAIN VIEW, CA 940406203

👤
Provider Name / Credentials Updated March 22, 2016

Recorded as JOHN OHOLLERAN, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 22, 2016

Surgery (License #G73614 in CA)

🟢
Initial NPI Registration & Enumeration September 25, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1912007220
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: September 25, 2006
Last Update: February 02, 2024
Sole Proprietor: No

Mailing Address

Po Box 3158

Portland, OR 972083158

Phone: 5032156494

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.