Doctor profile · Federal record

Dr. Mark Lessner, M.D.

Pediatrics Physician (CMS: Pediatric Medicine) · Family Medicine Physician · Parker, AZ

  • NPI 1497857999
  • Accepts Medicare
  • 51 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
601 W Riverside Dr Ste 2
Parker, AZ 853445119
(928) 256-4110
fax (928) 722-6113
Additional location
601 W Riverside Dr Ste 4
Parker, AZ 853445119
Additional location
968-R Woodside RD
Redwood City, CA 94061
(408) 356-1002
fax (209) 239-3408
Mailing address
1079 Eucalyptus St, Suite#A
Manteca, CA 95337

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
May 19, 2021
Year of graduation
1975 — 51 yrs since
Specialty taxonomy
208000000X — NUCC code
State licenses (2)
California #33868 · California #G33868
Medicaid
AZ #594551

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1497857999. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
20
Distinct HCPCS
1
Medicare allowed
$453
HCPCS Description Services Patients Avg allowed
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 20 13 $23

In context: peer comparison

Among 1 peers in this city , average services per provider: 20. This provider delivers 1.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Lessner's medical specialty?
Dr. Mark Lessner practices Pediatrics Physician in Parker, AZ.
Where does Dr. Mark Lessner practice?
Dr. Mark Lessner practices at 601 W Riverside Dr Ste 2, Parker, AZ 853445119. Office phone: 9282564110.
What is Dr. Mark Lessner's NPI?
Dr. Mark Lessner's National Provider Identifier (NPI) is 1497857999, issued by NPPES.
Does Dr. Mark Lessner accept Medicare assignment?
Yes. Dr. Mark Lessner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Lessner commonly perform?
Top Medicare-reported procedures in 2023: Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional (HCPCS 99211). Source: CMS Medicare Physician & Other Practitioners file.