Dr. Mark R. Lonquist, MD
Family Medicine (Family Medicine Physician)
13555 W Mcdowell Rd, #103
Goodyear, AZ 85395
Who else practices at this address →
Maricopa County includes primary care (13% of residents) and dental (0% of residents) and mental health (4% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Years since graduation
- 34
- In the NPI registry since
- 2005
- Medicare patients seen, 2024
- 455
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2005Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Family Medicine Physician primary
AZ license 22778
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Honor Health John C. Lincoln Medical Center Phoenix, AZ
Medical groups
- Privia Medical Group Arizona, LLC (91 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 455
- Services billed
- 14,171
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Injection, gadoterate meglumine, 0.1 ml | 1,900 | 19 |
| Established patient office or other outpatient visit, 20-29 minutes | 588 | 298 |
| Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 327 | 60 |
| Established patient office or other outpatient visit, 30-39 minutes | 280 | 192 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 261 | 261 |
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 184 | 32 |
| Injection of drug or substance under skin or into muscle | 145 | 36 |
| Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | 129 | 23 |
| Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | 73 | 24 |
| Administration of pneumococcal vaccine | 58 | 58 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 21 companies reported 69 payments worth $1,492 in total to this clinician.
| AstraZeneca Pharmaceuticals LP | $197 |
|---|---|
| AbbVie Inc. | $182 |
| Novo Nordisk Inc | $161 |
| GlaxoSmithKline, LLC. | $123 |
| Genzyme Corporation | $122 |
| Astellas Pharma US Inc | $93.68 |
| Corcept Therapeutics | $76.55 |
| Abbott Laboratories | $72.25 |
| Food and Beverage | $1,492 |
|---|
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.