Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Nathan Edward Grinder , DC

Chiropractor • Chandler, AZ

Active NPI 1164726717 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

2815 E Ocotillo Rd Ste 4
Chandler, AZ 852496040

Call 4807812964 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

2815 E Ocotillo Rd Ste 4

Chandler, AZ 852496040

Telephone 4807812964
Fax 4808094988
Organization at the Same NPPES Address or Phone
Cooper Medical Group, Llc Facility NPI 1871067744

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Ocotillo Medical Group Llc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

Life Chiropractic College - West

Graduation Year

2010

Medicare patients

48 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $26,720 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

Paid by Medicare

About $20,770 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $18.46 in 2021

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2021.

Guide: How to read an Open Payments record

Years since graduation

16 years (graduated 2010)

CMS Doctors and Clinicians data list 2010 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2010

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Grinder has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Compared with the same specialty in Chandler and Arizona

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 60% of clinicians listed under Chiropractor in Chandler, AZ (2024, 33 clinicians with data). Median for this group: 540. Middle half: 284 to 854.

Close to the middle for clinicians listed under Chiropractor in Arizona (2024, 601 clinicians with data). Median for this group: 546. Middle half: 270 to 1,020.

Medicare-allowed amount

A higher Medicare-allowed amount than 65% of clinicians listed under Chiropractor in Chandler, AZ (2024, 33 clinicians with data). Median for this group: $20,141. Middle half: $10,306 to $32,280.

A higher Medicare-allowed amount than 60% of clinicians listed under Chiropractor in Arizona (2024, 601 clinicians with data). Median for this group: $19,470. Middle half: $10,112 to $36,773.

Paid by Medicare

A higher Medicare payment amount than 65% of clinicians listed under Chiropractor in Chandler, AZ (2024, 33 clinicians with data). Median for this group: $14,642. Middle half: $6,926 to $22,384.

A higher Medicare payment amount than 65% of clinicians listed under Chiropractor in Arizona (2024, 601 clinicians with data). Median for this group: $13,679. Middle half: $6,878 to $26,286.

123 active clinicians are listed under Chiropractor with a practice address in Chandler, AZ (1,971 in Arizona).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Chandler

0% of these 123 clinicians have the CMS telehealth indicator.

24.4% of these 123 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Open Payments (2021), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2021

Program year 2021 (payments made January 1 – December 31, 2021): fewer than 11 records totaling $18.46.

Manufacturer Payment Nature Product Type Amount ($)
Abbott Laboratories
Food and Beverage
In-kind items and services
Proclaim IPG General $18.46

Source: CMS Open Payments, program year 2021, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2018–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2019–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
98941 Chiropractic manipulative treatment, 3-4 spinal regions
465 37 $191.04 $38.08
98942 Chiropractic manipulative treatment, 5 spinal regions
183 12 $293.21 $49.25

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2021-05-10
Chiropractor Primary Specialty

NUCC Taxonomy Code: 111N00000X

License # reported to NPPES AZ 8174

A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.

Chiropractor - Rehabilitation

NUCC Taxonomy Code: 111NR0400X

License # reported to NPPES AZ 8174

Rehabilitation is the discipline focused on restoring a patient's functional abilities to pre-injury or pre-disease status. Functional abilities are defined as those activities in one's daily life, work, or sports and recreational activities that an individual participates in. Relevant impairments (e.g. strength, endurance, flexibility, motor control, etc.) are often intermediate goals of rehabilitation, but the final goal of successful care is return to participation in activities in which the patient was successful before the onset of the injury or disease. Essential to a rehabilitation approach is a focus on patient-centered outcomes such as independence and self-management or self-care skills.

Chiropractor - Sports Physician

NUCC Taxonomy Code: 111NS0005X

License # reported to NPPES AZ 8174

A sports chiropractor is uniquely trained to provide care and treatment of injuries or illness resulting from sports and physical fitness activities. Doctors of Chiropractic with the Diplomate American Chiropractic Board of Sports Physicians (DACBSP) or the Certified Chiropractic Sports Physician (CCSP), sport specialty certifications from the American Chiropractic Board of Sports Physicians, have advanced training in the assessment, management and rehabilitation of sports related injuries. Extremity care, rehabilitation and soft tissue procedures are common skills utilized by these doctors. The specialty training covers a broad spectrum from the pediatric athlete to professional and Olympic athletes, and everything in between, using a variety of techniques and modalities.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Arizona Medical Board.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - CHIROPRACTIC

Medicare Enrollment ID

I20110407000495

Enrollment State Jurisdiction

AZ

PECOS Control ID

5597949008

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Ocotillo Medical Group Llc

2815 E Ocotillo Rd, Chandler, AZ 852496040

Phone: 4809267800

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

2 listed
NPI 1770003816

Doctor of Chiropractic

Parker Hildebrand , PA-C

Physician Assistant

NPI 1467009340

Physician Assistant (Certified)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

16 Historical Events
📍
Updated Practice Location May 10, 2021

Registered at 2815 E OCOTILLO RD STE 4, CHANDLER, AZ 852496040 (Tel: 4807812964)

📍
Updated Business Mailing Address May 10, 2021

Registered at 4337 E AMBER LN, GILBERT, AZ 852961585 (Tel: 6024304486)

âś…
NPI Profile Active December 07, 2017

NPI status registered as active in NPPES database

📍
Updated Practice Location December 07, 2017

Registered at 7227 E BASELINE RD, STE 106, MESA, AZ 852095005 (Tel: 4805885482)

📍
Updated Business Mailing Address December 07, 2017

Registered at 7227 E BASELINE RD, STE 106, MESA, AZ 852095005 (Tel: 4805885482)

👤
Provider Name / Credentials Updated December 07, 2017

Recorded as NATHAN GRINDER, D.C.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) December 07, 2017

Chiropractor (license number reported to NPPES: AZ 8174)

📍
Updated Practice Location April 19, 2017

Registered at 130 S VAL VISTA DR, STE E-2, GILBERT, AZ 852961363 (Tel: 4805885482)

📍
Updated Business Mailing Address April 19, 2017

Registered at 130 S VAL VISTA DR, STE E-2, GILBERT, AZ 852961363 (Tel: 4805885482)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 19, 2017

Chiropractor (license number reported to NPPES: AZ 8174)

âś…
NPI Profile Active April 20, 2011

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) April 20, 2011

Registered at 754 S VAL VISTA DR, SUITE 105, GILBERT, AZ 852963157 (Tel: 4804972900)

📍
Business Mailing Address (Initial Record) April 20, 2011

Registered at 754 S VAL VISTA DR, SUITE 105, GILBERT, AZ 852963157 (Tel: 4804972900)

👤
Provider Name / Credentials (Initial Record) April 20, 2011

Recorded as NATHAN GRINDER, D.C.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 20, 2011

Chiropractor (license number reported to NPPES: AZ 8174)

🟢
Initial NPI Registration & Enumeration December 22, 2010

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1164726717
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: December 22, 2010
Last Update: May 10, 2021
Sole Proprietor: No

Other Chiropractors in Chandler

All Chiropractors in Chandler

Mailing Address

4337 E Amber Ln

Gilbert, AZ 852961585

Phone: 6024304486

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.