TIMOTHY M DENMAN MD
NPI 1073582359
Ophthalmology in Lake Oswego, OR

NPI Status: Active since March 17, 2006

Contact Information

4035 MERCANTILE DR
SUITE 216
LAKE OSWEGO, OR
ZIP 97035
Phone: (503) 636-2551
Fax: (503) 636-3055

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  • Individual
  • Male
  • Ophthalmology

About TIMOTHY DENMAN

This page provides the complete NPI Profile along with additional information for Timothy Denman, a provider established in Lake Oswego, Oregon with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1073582359 assigned on March 2006. The practitioner's primary taxonomy code is 207W00000X with license number MD09153 (OR). The provider is registered as an individual and his NPI record was last updated 13 years ago.

NPI
1073582359
Provider Name
TIMOTHY M DENMAN MD
Gender
Male
Entity Type
Individual
Location Address
4035 MERCANTILE DR SUITE 216 LAKE OSWEGO, OR 97035
Location Phone
(503) 636-2551
Location Fax
(503) 636-3055
Mailing Address
6420 SW MACADAM AVE SUITE 216 PORTLAND, OR 97239
Mailing Phone
(503) 244-8601
Mailing Fax
(503) 636-3055
Is Sole Proprietor?
No
Enumeration Date
03-17-2006
Last Update Date
05-29-2013
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Ophthalmologists like Timothy Denman specialize in diagnosing and treating eye conditions. They may perform surgeries to correct vision issues or prevent vision loss due to diseases like glaucoma. Additionally, they can provide eyeglasses, prescribe contact lenses, and offer other vision-related services.

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

Ophthalmology

Taxonomy Code
207W00000X
Type
Allopathic & Osteopathic Physicians
License No.
MD09153
License State
OR
Taxonomy Description
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

Insurance Plans Accepted

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

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.

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
04877-7MEDICAID (05)OR 
018WCQKSAMEDICARE PIN (08)OR 
C92504MEDICARE UPIN (02)OR 
180022040OTHER (01)ORRAILROAD MEDICARE

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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 1073582359, we treat the final digit (9) 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 9).

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
0
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
3
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
8
Unchanged
Pos 7
2
Doubled → 4
Pos 8
3
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
9
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 7 → 14 → 5 5 → 10 → 1 2 → 4 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 4 + 3 + 1 + 0 + 8 + 4 + 3 + 1 + 0 + 24 = 51

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

The next multiple of ten after 51 is 60. The difference is the calculated check digit.

60 - 51 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1073582359.

Other Providers at the Same Location


The following 13 providers are registered at the same or a nearby location.

Ophthalmology
4035 MERCANTILE DR, SUITE 201
LAKE OSWEGO, OR 97035
Dentist (Prosthodontics)
4035 MERCANTILE DR, SUITE 100
LAKE OSWEGO, OR 97035
Specialist
4035 MERCANTILE DR, SUITE 206
LAKE OSWEGO, OR 97035
Physical Therapist
4035 MERCANTILE DR, SUITE 108
LAKE OSWEGO, OR 97035
Internal Medicine
4035 MERCANTILE DR, SUITE 101
LAKE OSWEGO, OR 97035
Clinic/Center (Primary Care)
4035 MERCANTILE DR, SUITE 112
LAKE OSWEGO, OR 97035
Chiropractor (Neurology)
4035 MERCANTILE DR, SUITE 112
LAKE OSWEGO, OR 97035
Family Medicine
4035 MERCANTILE DR, SUITE 104
LAKE OSWEGO, OR 97035
Optometrist
4035 MERCANTILE DR, SUITE 216
LAKE OSWEGO, OR 97035
Chiropractor (Neurology)
4035 MERCANTILE DR, 112
LAKE OSWEGO, OR 97035
Chiropractor
4035 MERCANTILE DR, #112
LAKE OSWEGO, OR 97035
Internal Medicine
4035 MERCANTILE DR, SUITE 101
LAKE OSWEGO, OR 97035
Internal Medicine
4035 MERCANTILE DR, SUITE 112
LAKE OSWEGO, OR 97035

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1073582359, enumerated as an "individual" on March 17, 2006.

The provider is located at 4035 MERCANTILE DR SUITE 216 LAKE OSWEGO, OR 97035 and the phone number is (503) 636-2551.

Ophthalmology with taxonomy code 207W00000X.

The provider might be accepting Accepts: Medicare, Medicaid and Railroad Medicare. Please consult your insurance carrier or call the provider to verify.