Doctor profile · Federal record

Dr. Ariel Palanca, M.D.

Orthopaedic Surgery Physician (CMS: Orthopedic Surgery) · Stanford, CA

  • NPI 1629203971
  • Accepts Medicare
  • MIPS 77.3 / 100 · 2023
  • 22 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
300 Pasteur Drive, Stanford Hospital & Clinics
Stanford, CA 94305
(650) 721-7638
Mailing address
300 Pasteur Dr
Stanford, CA 943052200

Credentials & registration

NPPES · NUCC
NPI registered
May 2009 — 17 yrs on file
Profile last updated
September 28, 2015
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
207X00000X — NUCC code
State license (1)
California #A114257

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1629203971. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,539
Distinct HCPCS
10
Medicare allowed
$127,240
HCPCS Description Services Patients Avg allowed
73630 X-ray of foot, minimum of 3 views 334 198 $39
99213 Established patient office or other outpatient visit, 20-29 minutes 297 195 $97
99214 Established patient office or other outpatient visit, 30-39 minutes 248 172 $136
73610 X-ray of ankle, minimum of 3 views 174 112 $42
J1030 Injection, methylprednisolone acetate, 40 mg 139 71 $8
99204 New patient office or other outpatient visit, 45-59 minutes 89 89 $177
20600 Aspiration and/or injection of fluid from small joint 66 44 $59
29540 Placement of strapping to ankle or foot 53 45 $30
20605 Aspiration and/or injection of fluid from medium joint 42 29 $58
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 20 20 $180

In context: peer comparison

Among 5 peers in Stanford Orthopaedic Surgery Physician, average services per provider: 153. This provider delivers 10× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$215,829
Transactions
199
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
MedShape, INC. 78 $89,488.22
Trilliant Surgical LLC. 73 $66,300.72
Stryker Corporation 13 $40,113.66
Fusion Orthopedics USA, LLC 7 $8,662.16
Arthrex, INC. 2 $5,000.00
Novastep INC. 4 $4,547.27
Acumed LLC 6 $685.43
Integra LifeSciences Corporation 2 $250.31
Elevate Surgical Co 6 $227.29
Smith+Nephew, INC. 2 $175.37
Exactech, INC. 1 $98.99
Treace Medical Concepts, INC. 2 $95.93
Paragon 28, INC. 1 $81.44
Bioventus LLC 1 $60.53
Illuminoss Medical, INC. 1 $22.22

By nature of payment

Consulting Fee
$181,813
Travel and Lodging
$19,808
Royalty or License
$5,764
Compensation for Services Other Than Consulting, Including Serving As Faculty or As A Speaker at A Venue Other Than A Continuing Education Program
$5,000
Food and Beverage
$3,203
Long Term Medical Supply or Device Loan
$241

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
371
Patients
176
Total drug cost
$2,125
Drug Type Claims Patients Total cost
Gabapentin Generic 176 76 $836
Oxycodone Hcl Generic 120 73 $812
Tramadol Hcl Generic 19 14 $76
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 17 0 $174
Ibuprofen Generic 14 0 $43
Cephalexin Generic 13 13 $115
Ondansetron Hcl Generic 12 0 $70

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ariel Palanca's medical specialty?
Dr. Ariel Palanca practices Orthopaedic Surgery Physician in Stanford, CA.
Where does Dr. Ariel Palanca practice?
Dr. Ariel Palanca practices at 300 Pasteur Drive, Stanford, CA 94305. Office phone: 6507217638.
What is Dr. Ariel Palanca's NPI?
Dr. Ariel Palanca's National Provider Identifier (NPI) is 1629203971, issued by NPPES.
Does Dr. Ariel Palanca accept Medicare assignment?
Yes. Dr. Ariel Palanca accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ariel Palanca commonly perform?
Top Medicare-reported procedures in 2023: X-ray of foot, minimum of 3 views (HCPCS 73630); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.