NPPES file of Aug 9, 2026

Er-Kai Gao, M.D.

Neurological Surgery Physician · La Mesa, CA

Er-Kai Gao, M.D. is a neurological surgery physician with a practice address in La Mesa, California, and NPI 1710064944, issued on Nov 1, 2006. Check the license (California A71659, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1710064944
Name
Er-Kai Gao
Credential
M.D.
Primary taxonomy
Neurological Surgery Physician 207T00000X
License number
A71659 CA
Self-reported in NPPES; status is on the state search
Practice location
8851 Center Dr Ste 603, La Mesa, CA 91942
Phone
(619) 667-4545
Enumerated
Nov 1, 2006
Record last updated
Sep 8, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(619) 667-4550
Medicaid ID
00A716590 CA
Medicare enrollment
Enrolled (PECOS I20040612000502); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 8851 Center Dr Ste 603

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Yu Cheng, M.D.Neurological Surgery Physician1336226471
  2. Joy Gao, DNPFamily Nurse Practitioner1659042521

Verify Er-Kai Gao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A71659
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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5.8 times the Medicare Part D claims of the average neurological surgery physician in 2024

998 Medicare Part D claims for 189 beneficiaries, against an average of 172 among the 4,378 providers of this specialty who prescribed in Part D.

  1. Er-Kai Gao998
  2. Specialty average172

Most prescribed

  1. Gabapentin141 claims
  2. Donepezil Hcl87 claims
  3. Carbidopa-Levodopa55 claims
  4. Memantine Hcl46 claims
  5. Levetiracetam43 claims
  6. Panzyga34 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 5.9 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costout of 100 · 30%19.6
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $6,632.07

215 payments; by number, the most common kind was food and beverage; the largest payer was Ucb, Inc. The 5,377 providers of this specialty with any payment received $14,925.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Er-Kai Gao$6,632
  2. Specialty average$14,926

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. ER-Kai Gao MD IncLa Mesa, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Er-Kai Gao among 929 neurological surgery physician records in California

Er-Kai Gao, M.D. is one of 929 neurological surgery physician records with a practice address in California. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 62% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1983 · median 2005 among the 612 with a school on file
  • Record last updated2021 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurological Surgery Physician providers in California

There are 929 neurological surgery physician records in California.

The 8 neurological surgery physician records with the nearest ZIP codes

  1. Yu Cheng, M.D.La Mesa, CA 919421336226471
  2. Tyrone Hardy, MDLa Mesa, CA 919421174739460
  3. Sabareesh Natarajan, M.D. M.S.La Mesa, CA 919421912190083
  4. Daniel White, MDChula Vista, CA 919101033214796
  5. Evan Winograd, M.D.Carlsbad, CA 920111538426549
  6. Thomas Marcisz, MDEscondido, CA 920251255445854
  7. Imad Shahhal, M.D.Escondido, CA 920251700013463
  8. Mark Stern, MDEscondido, CA 920251649282765

Common questions

What is Er-Kai Gao, M.D.'s NPI number?

Er-Kai Gao, M.D.'s National Provider Identifier (NPI) is 1710064944, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Er-Kai Gao, M.D. located?

The NPPES record lists a practice address at 8851 Center Dr Ste 603, La Mesa, CA, 91942. Phone: (619) 667-4545. Providers update this record themselves, so call before visiting.

How can I verify Er-Kai Gao, M.D.'s license?

NPPES lists California license number A71659, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Er-Kai Gao, M.D. prescribe under Medicare Part D?

In 2024, Er-Kai Gao, M.D. had 998 Medicare Part D claims for 189 beneficiaries; the average among neurological surgery physician prescribers was 172. Part D covers Medicare prescriptions only.

What is Er-Kai Gao, M.D.'s MIPS final score?

The 2023 MIPS final score is 5.9 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.