DR. TIMOTHY B WELCH MD, DDS
NPI 1952329450
Oral & Maxillofacial Surgery in Eugene, OR

NPI Status: Active since July 17, 2006

Contact Information

911 COUNTRY CLUB RD STE 100
EUGENE, OR
ZIP 97401
Phone: (541) 465-3939
Fax: (541) 465-3946

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  • Individual
  • Male
  • Oral & Maxillofacial Surgery
  • Accepts Insurance
  • PECOS Enrolled
  • Opted-Out Medicare
  • CLIA Number: 38D1102156
  • CLIA Cert. Type: Practitioner Other
  • CLIA Exp. Date: 07-12-2027

About TIMOTHY WELCH

This page provides the complete NPI Profile along with additional information for Timothy Welch, a provider established in Eugene, Oregon with a medical specialization in Oral & Maxillofacial Surgery. The healthcare provider is registered in the NPI registry with number 1952329450 assigned on July 2006. The practitioner's primary taxonomy code is 204E00000X with license number 20049 (OR). The provider is registered as an individual and his NPI record was last updated 7 years ago.

NPI
1952329450
Provider Name
DR. TIMOTHY B WELCH MD, DDS
Gender
Male
Entity Type
Individual
Location Address
911 COUNTRY CLUB RD STE 100 EUGENE, OR 97401
Location Phone
(541) 465-3939
Location Fax
(541) 465-3946
Mailing Address
911 COUNTRY CLUB RD STE 100 EUGENE, OR 97401
Mailing Phone
(541) 465-3939
Mailing Fax
(541) 465-3946
Is Sole Proprietor?
Yes
Enumeration Date
07-17-2006
Last Update Date
02-07-2019
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The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. Timothy Welch opted out of Medicare effective on 01-14-2020 until 01-14-2028. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare but is permitted to order and refer services to other healthcare providers.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Oral & Maxillofacial Surgery

Taxonomy Code
204E00000X
Type
Allopathic & Osteopathic Physicians
License No.
20049
License State
OR
Taxonomy Description
Oral and maxillofacial surgeons are trained to recognize and treat a wide spectrum of diseases, injuries and defects in the head, neck, face, jaws and the hard and soft tissues of the oral and maxillofacial region. They are also trained to administer anesthesia, and provide care in an office setting. They are trained to treat problems such as the extraction of wisdom teeth, misaligned jaws, tumors and cysts of the jaw and mouth, and to perform dental implant surgery.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Delta Dental EPO - EPO
  • Delta Dental PPO - PPO
  • Delta Dental PPO MAC - PPO
  • Dental Choice 0-20-50 1000 - Indemnity
  • Dental Choice 0-20-50 1500 - Indemnity
  • Dental PPO 0-20-50 1000 - PPO
  • Dental PPO 0-20-50 1500 - PPO
  • Kids Dental Choice 0-20-50 - Indemnity
  • Kids Dental PPO 0-20-50 - PPO

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
150939MEDICAID (05)OR 

Medicare Participation & PECOS Enrollment Status

Timothy Welch is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME) and a Home Health Agency (HHA).

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • Opted-Out of Medicare? Yes

  • Opt-Out Effective Date: 01-14-2020

  • Opt-Out End Date: 01-14-2028

  • Eligible to Order and Refer? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: No

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
38D1102156
Facility Type
Practitioner Other
Certificate Effective Date
July 13, 2025
Certificate Expiration Date
July 12, 2027
Laboratory Director
TIMOTHY B. WELCH
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Timothy Welch to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1952329450, we treat the final digit (0) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
9
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
2
Unchanged
Pos 5
3
Doubled → 6
Pos 6
2
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
4
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
0
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 5 → 10 → 1 3 → 6 9 → 18 → 9 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 9 + 1 + 0 + 2 + 6 + 2 + 1 + 8 + 4 + 1 + 0 + 24 = 60

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 60 is 60. The difference is the calculated check digit.

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1952329450.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Dentist (Oral and Maxillofacial Surgery)
911 COUNTRY CLUB RD STE 100
EUGENE, OR 97401
Dentist (Oral and Maxillofacial Surgery)
911 COUNTRY CLUB RD STE 100
EUGENE, OR 97401

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1952329450, enumerated as an "individual" on July 17, 2006.

The provider is located at 911 COUNTRY CLUB RD STE 100 EUGENE, OR 97401 and the phone number is (541) 465-3939.

Oral & Maxillofacial Surgery with taxonomy code 204E00000X.

The provider might be accepting Accepts: Delta Dental Plan of Oregon, PacificSource Health. Please consult your insurance carrier or call the provider to verify.