Doctor profile · Federal record

Dr. Amit Ayer, M.D.

Neurological Surgery Physician (CMS: Neurosurgery) · Neurological Surgery Physician · Neurological Surgery Physician · Neurological Surgery Physician · Neurological Surgery Physician · Palo Alto, CA

  • NPI 1841638293
  • Accepts Medicare
  • MIPS 88.2 / 100 · 2023
  • 13 yrs in practice
  • Licensed in 4 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
213 Quarry RD Fl 2
Palo Alto, CA 943041416
(650) 721-4936
Additional location
676 N Saint Clair St, Suite 2210
Chicago, IL 606112927
(312) 695-6200
fax (312) 695-0225

Credentials & registration

NPPES · NUCC
NPI registered
June 2013 — 13 yrs on file
Profile last updated
March 28, 2023
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
207T00000X — NUCC code
State licenses (5)
Oregon #MD214300 · Illinois #125063148 · Illinois #125.063148 · Colorado #DR.0066618 · California #A166651

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841638293. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
16
Distinct HCPCS
1
Medicare allowed
$1,493
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 16 14 $93

In context: peer comparison

Among 7 peers in this city , average services per provider: 39. This provider delivers 0.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$275
Transactions
6
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Abbott Laboratories 2 $146.64
Alphatec Spine, Inc 2 $77.95
Globus Medical, Inc. 1 $29.33
NEUROPACE, INC. 1 $20.71

By nature of payment

Food and Beverage
$275

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Amit Ayer's medical specialty?
Dr. Amit Ayer practices Neurological Surgery Physician in Palo Alto, CA.
Where does Dr. Amit Ayer practice?
Dr. Amit Ayer practices at 213 Quarry RD Fl 2, Palo Alto, CA 943041416. Office phone: 6507214936.
What is Dr. Amit Ayer's NPI?
Dr. Amit Ayer's National Provider Identifier (NPI) is 1841638293, issued by NPPES.
Does Dr. Amit Ayer accept Medicare assignment?
Yes. Dr. Amit Ayer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Amit Ayer commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.