Doctor profile · Federal record

Dr. Ariel Knight, M.D.

Surgery Physician (CMS: General Surgery) · Surgery Physician · Surgical Critical Care Physician · Palo Alto, CA

  • NPI 1841679008
  • Accepts Medicare
  • MIPS 75.5 / 100 · 2023
  • 11 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
300 Pasteur Dr
Palo Alto, CA 943042203
(650) 723-4000

Credentials & registration

NPPES · NUCC
NPI registered
May 2015 — 11 yrs on file
Profile last updated
April 27, 2024
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
208600000X — NUCC code
State licenses (2)
California #169411 · Minnesota #61549

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841679008. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
383
Distinct HCPCS
9
Medicare allowed
$49,233
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 112 72 $91
99291 Critical care, first 30-74 minutes 62 23 $240
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 61 36 $56
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 53 53 $147
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 24 24 $94
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 23 23 $199
99239 Hospital discharge day management, more than 30 minutes 22 22 $134
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 15 15 $137
99238 Hospital discharge day management, 30 minutes or less 11 11 $95

In context: peer comparison

Among 24 peers in Palo Alto Surgery Physician, average services per provider: 38. This provider delivers 10× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$106
Transactions
3
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
W. L. Gore & Associates, INC. 1 $52.15
Kls-Martin L.P. 1 $46.54
Btg International, INC. 1 $7.22

By nature of payment

Food and Beverage
$99
Education
$7

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ariel Knight's medical specialty?
Dr. Ariel Knight practices Surgery Physician in Palo Alto, CA.
Where does Dr. Ariel Knight practice?
Dr. Ariel Knight practices at 300 Pasteur Dr, Palo Alto, CA 943042203. Office phone: 6507234000.
What is Dr. Ariel Knight's NPI?
Dr. Ariel Knight's National Provider Identifier (NPI) is 1841679008, issued by NPPES.
Does Dr. Ariel Knight accept Medicare assignment?
Yes. Dr. Ariel Knight accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ariel Knight commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Critical care (HCPCS 99291); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231). Source: CMS Medicare Physician & Other Practitioners file.