Doctor profile · Federal record

Dr. Thomas Dieringer, M.D.

Infectious Disease Physician (CMS: Infectious Disease) · Internal Medicine Physician · Palo Alto, CA

  • NPI 1316393671
  • Accepts Medicare
  • MIPS 75.5 / 100 · 2023
  • 10 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
300 Pasteur Dr
Palo Alto, CA 943042203
(650) 723-4000
Additional location
1215 Lee St, Box #800744
Charlottesville, VA 229080816
(434) 924-1931
fax (434) 243-5770

Credentials & registration

NPPES · NUCC
NPI registered
May 2016 — 10 yrs on file
Profile last updated
April 28, 2024
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207RI0200X — NUCC code
State license (1)
California #A162050

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1316393671. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
743
Distinct HCPCS
10
Medicare allowed
$99,867
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 292 89 $132
99215 Established patient office or other outpatient visit, 40-54 minutes 124 63 $163
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 123 59 $88
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 77 73 $196
99214 Established patient office or other outpatient visit, 30-39 minutes 31 28 $111
99205 New patient office or other outpatient visit, 60-74 minutes 27 27 $205
99443 Telephone medical discussion with physician, 21-30 minutes 21 21 $110
99451 Telephone, internet, or electronic health record assessment and management with written report by consulting physician, at least 5 minutes 18 18 $41
99213 Established patient office or other outpatient visit, 20-29 minutes 16 11 $75
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 14 14 $147

In context: peer comparison

Among 5 peers in Palo Alto Infectious Disease Physician, average services per provider: 56. This provider delivers 13× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
90
Patients
0
Total drug cost
$16,835
Drug Type Claims Patients Total cost
Rifampin Generic 24 0 $2,532
Ertapenem (Ertapenem Sodium) Brand 20 0 $9,905
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 17 0 $781
Fluconazole Generic 17 0 $2,466
Doxycycline Hyclate Generic 12 0 $1,150

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Dieringer's medical specialty?
Dr. Thomas Dieringer practices Infectious Disease Physician in Palo Alto, CA.
Where does Dr. Thomas Dieringer practice?
Dr. Thomas Dieringer practices at 300 Pasteur Dr, Palo Alto, CA 943042203. Office phone: 6507234000.
What is Dr. Thomas Dieringer's NPI?
Dr. Thomas Dieringer's National Provider Identifier (NPI) is 1316393671, issued by NPPES.
Does Dr. Thomas Dieringer accept Medicare assignment?
Yes. Dr. Thomas Dieringer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Dieringer commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99215); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.