MR. GREGORY JOHN ESMER DO
NPI 1891871455
Neuromusculoskeletal Medicine & OMM in Portland, OR

NPI Status: Active since October 27, 2006

Contact Information

4039 N MISSISSIPPI AVE STE 203
PORTLAND, OR
ZIP 97227
Phone: (503) 970-2303
Fax: (503) 719-7591

Get Directions Write a Review

  • Individual
  • Male
  • Neuromusculoskeletal Medicine & OMM
  • Accepts Insurance
  • PECOS Enrolled
  • Opted-Out Medicare

About GREGORY ESMER

This page provides the complete NPI Profile along with additional information for Gregory Esmer, a provider established in Portland, Oregon with a medical specialization in Neuromusculoskeletal Medicine & Omm. The healthcare provider is registered in the NPI registry with number 1891871455 assigned on October 2006. The practitioner's primary taxonomy code is 204D00000X with license number DO26929 (OR). The provider is registered as an individual and his NPI record was last updated 14 years ago.

NPI
1891871455
Provider Name
MR. GREGORY JOHN ESMER DO
Gender
Male
Entity Type
Individual
Location Address
4039 N MISSISSIPPI AVE STE 203 PORTLAND, OR 97227
Location Phone
(503) 970-2303
Location Fax
(503) 719-7591
Mailing Address
4039 N MISSISSIPPI AVE STE 203 PORTLAND, OR 97227
Mailing Phone
(503) 970-2303
Mailing Fax
(503) 719-7591
Is Sole Proprietor?
Yes
Enumeration Date
10-27-2006
Last Update Date
01-13-2012
Code Navigator



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. Gregory Esmer opted out of Medicare effective on 09-07-2016 until 09-07-2026. 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

Neuromusculoskeletal Medicine & OMM

Taxonomy Code
204D00000X
Type
Allopathic & Osteopathic Physicians
License No.
DO26929
License State
OR
Taxonomy Description
The Neuromusculoskeletal Medicine and Osteopathic Manipulative Medicine physician directs special attention to the neuromusculoskeletal system and its interaction with other body systems. Neuromusculoskeletal Medicine and Osteopathic Manipulative Medicine encompasses increased knowledge and understanding of osteopathic principles and practice and heightened technical skills of osteopathic manipulative medicine, and integrates each of these into the management of pediatric, adolescent, adult, and geriatric patients.

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)
1208D00000XAllopathic & Osteopathic Physicians

General Practice

D026929 (OR)
2208D00000XAllopathic & Osteopathic Physicians

General Practice

1826 (ME)

Insurance Plans Accepted

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

  • HSA Qualified 7500 Bronze - Choice Network - EPO
  • HSA-E Qualified 7500 Bronze - Signature Network - EPO
  • Providence Oregon Standard Bronze Plan - Choice Network - EPO
  • Providence Oregon Standard Bronze Plan - Signature Network - EPO
  • Providence Oregon Standard Gold Plan - Choice Network - EPO
  • Providence Oregon Standard Gold Plan - Signature Network - EPO
  • Providence Oregon Standard Silver Plan - Choice Network - EPO
  • Providence Oregon Standard Silver Plan - Signature Network - EPO

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

Medicare Participation & PECOS Enrollment Status

Gregory Esmer 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

  • Opted-Out of Medicare? Yes

  • Opt-Out Effective Date: 09-07-2016

  • Opt-Out End Date: 09-07-2026

  • 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: Yes

Reviews for MR. GREGORY JOHN ESMER DO

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1891871455, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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
8
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
1
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
7
Unchanged
Pos 7
1
Doubled → 2
Pos 8
4
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
5
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 9 → 18 → 9 8 → 16 → 7 1 → 2 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 8 + 1 + 1 + 6 + 7 + 2 + 4 + 1 + 0 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1891871455.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Neuromusculoskeletal Medicine & OMM
4039 N MISSISSIPPI AVE STE 203
PORTLAND, OR 97227

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1891871455, enumerated as an "individual" on October 27, 2006.

The provider is located at 4039 N MISSISSIPPI AVE STE 203 PORTLAND, OR 97227 and the phone number is (503) 970-2303.

Neuromusculoskeletal Medicine & OMM with taxonomy code 204D00000X.

The provider might be accepting Accepts: Providence Health Plan. Please consult your insurance carrier or call the provider to verify.