Dr. James R Sieffert , DC
Chiropractor β’ Mesa, AZ
4540 E Baseline Rd, Suite 105
Mesa, AZ 852064613
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
4540 E Baseline Rd
Suite 105
Mesa, AZ 852064613
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Chiropractor: NPPES taxonomy is a reported classification, not proof of board certification.
Open Payments general payments, program year 2019
All general payments: $72.61 across 2 records.
By nature of payment
- Food and Beverage: $72.61 across 2 records.
Reporting-company totals
- BSN Medical Inc: $38.73 across 1 record.
- BrainScope Company, Inc.: $33.88 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2019 (published June 30, 2026).
NPI first issued
2006
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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, βDoes your provider accept Medicare as full payment?β
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.
Enrolled in Medicare (PECOS)
Dr. Sieffert 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.
Compared with the same specialty in Mesa and Arizona
179 active clinicians are listed under Chiropractor with a practice address in Mesa, AZ (1,971 in Arizona).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Mesa
0% of these 179 clinicians have the CMS telehealth indicator.
29.6% of these 179 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2019 only.
Sources: CMS Open Payments (2019), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· 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
Program year 2019 (payments made January 1 β December 31, 2019): fewer than 11 records totaling $72.61.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| BSN Medical Inc |
Food and Beverage
In-kind items and services
|
β | General | $38.73 |
| BrainScope Company, Inc. |
Food and Beverage
Cash or cash equivalent
|
Modified BrainScope One | General | $33.88 |
Source: CMS Open Payments, program year 2019, released June 30, 2026.
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 111N00000X
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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - CHIROPRACTIC
I20090512000305
AZ
9133027790
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Family
Nurse Practitioner
Career & Practice History
NPI enumerated September 20, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Chiropractors in Mesa
- Dr. Janeen Sarhaddi, DC
- Dr. Ammon Opie, DC
- Dr. Parrish Lewin, DC
- Dr. Michael Kenney, DC
- Dr. Michone Ouellette, DC
- Dr. Cameron Sembaluk, DC
Mailing Address
4540 E Baseline Rd, Suite 105
Mesa, AZ 852064613
Phone: 4802728944