MARTHA MCMAHON PA-C
NPI 1407241490
Physician Assistant - Surgical in Portland, OR

NPI Status: Active since April 06, 2015

Contact Information

808 SW 15TH AVE
PORTLAND, OR
ZIP 97205
Phone: (503) 274-4994

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  • Individual
  • Female
  • Physician Assistant
  • Surgical
  • PECOS Enrolled

About MARTHA MCMAHON

This page provides the complete NPI Profile along with additional information for Martha Mcmahon, a provider established in Portland, Oregon with a medical specialization in Physician Assistant, focusing in surgical . The healthcare provider is registered in the NPI registry with number 1407241490 assigned on April 2015. The practitioner's primary taxonomy code is 363AS0400X with license number PA172159 (OR). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1407241490
Provider Name
MARTHA MCMAHON PA-C
Other Name
MARTHA SICKING
Other Name Type
Former Name (1)
Gender
Female
Entity Type
Individual
Location Address
808 SW 15TH AVE PORTLAND, OR 97205
Location Phone
(503) 274-4994
Mailing Address
808 SW 15TH AVE PORTLAND, OR 97205
Mailing Phone
(503) 274-4994
Is Sole Proprietor?
No
Enumeration Date
04-06-2015
Last Update Date
10-22-2025
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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

Physician Assistant Surgical

Taxonomy Code
363AS0400X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
PA172159
License State
OR

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1363A00000XPhysician Assistants & Advanced Practice Nursing Providers

Physician Assistant

172159 (OR)

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.

*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
500698025MEDICAID (05)OR 
R186744OTHER (01)ORMEDICARE PTAN

Medicare Participation & PECOS Enrollment Status

Martha Mcmahon 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), a Home Health Agency (HHA) and Power Mobility Devices.

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

  • 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: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Established patient office or other outpatient visit, 30-39 minutes

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.

This service was performed 46 times for 37 patients

New patient office or other outpatient visit, 45-59 minutes

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.

This service was performed 24 times for 24 patients

Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment

This procedure involves removing part of a spine bone to alleviate pressure on the lower spinal cord and/or nerves. It targets a single segment of the spine, improving mobility and reducing pain. It's a common treatment for conditions like herniated discs or spinal stenosis.

This service was performed 18 times for 18 patients

Reviews for MARTHA MCMAHON PA-C

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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 1407241490, 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
4
Unchanged
Pos 3
0
Doubled → 0
Pos 4
7
Unchanged
Pos 5
2
Doubled → 4
Pos 6
4
Unchanged
Pos 7
1
Doubled → 2
Pos 8
4
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
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 0 → 0 2 → 4 1 → 2 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 0 + 7 + 4 + 4 + 2 + 4 + 1 + 8 + 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 1407241490.

Other Providers at the Same Location


The following 8 providers are registered at the same or a nearby location.

Specialist
808 SW 15TH AVE
PORTLAND, OR 97205
Genetic Counselor, MS
808 SW 15TH AVE
PORTLAND, OR 97205
Specialist
808 SW 15TH AVE
PORTLAND, OR 97205
Specialist
808 SW 15TH AVE
PORTLAND, OR 97205
Obstetrics & Gynecology (Reproductive Endocrinology)
808 SW 15TH AVE
PORTLAND, OR 97205
Clinical Medical Laboratory
808 SW 15TH AVE
PORTLAND, OR 97205
Obstetrics & Gynecology (Reproductive Endocrinology)
808 SW 15TH AVE
PORTLAND, OR 97205
Urology
808 SW 15TH AVE
PORTLAND, OR 97205

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1407241490, enumerated as an "individual" on April 06, 2015.

The provider is located at 808 SW 15TH AVE PORTLAND, OR 97205 and the phone number is (503) 274-4994.

Physician Assistant with taxonomy code 363AS0400X and a focus in Surgical.

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