Dr. Yael Gernez-Goldhammer, MD, PhD

  • Palo Alto, CA
  • Allergist and immunologist
NPI1659792125PAC ID5799043204
Medicare services, 2024
13
Medicare patients, 2024
23
Part D claims, 2024
29
MIPS score, 2024
89
Hospital affiliations
2
Practice address
725 Welch Road, Palo Alto, CA 94304
Practice phone
Call (650) 497-8000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Lucile Packard Children's Hospital Stanford

Hospital · Palo Alto, California

See all 4 affiliations

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Dr. Yael Gernez-Goldhammer is an allergist and immunologist in Palo Alto, California

Dr. Gernez-Goldhammer practices at Lucile Packard Children's Hospital Stanford in Palo Alto, California, part of Stanford University.

Dr. Gernez-Goldhammer's NPI, 1659792125, was assigned on December 30, 2013. Dr. Gernez-Goldhammer graduated from Other in 1996. Dr. Gernez-Goldhammer holds California license A133624.

NPI and contact details
Medicare PAC ID
5799043204
NPI enumeration date
December 30, 2013
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(650) 497-8000
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
44
Medical school graduation
1996

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Yael Gernez-Goldhammer practices at Lucile Packard Children's Hospital Stanford in Palo Alto, California

Dr. Gernez-Goldhammer's primary practice is Lucile Packard Children's Hospital Stanford, at 725 Welch Road, Palo Alto, CA 94304 in Santa Clara County. The practice phone is (650) 497-8000.

Source: Dmand AI Affiliation Data

Dr. Yael Gernez-Goldhammer is affiliated with 2 sites of care and 2 medical groups

Dr. Gernez-Goldhammer's primary practice is Lucile Packard Children's Hospital Stanford in Palo Alto, California, part of Stanford University. Dr. Gernez-Goldhammer is also affiliated with Stanford Hospital at 300 Pasteur Drive. The medical group on file is Stanford Health Care. Dmand AI also links Dr. Gernez-Goldhammer to 1 more medical group, named with a free account. Dr. Gernez-Goldhammer's employer is on file too: a hospital.

See all 4 affiliations for Dr. Gernez-Goldhammer

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Yael Gernez-Goldhammer's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gernez-Goldhammer practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Lucile Packard Children's Hospital StanfordAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Yael Gernez-Goldhammer is one of 386 allergists and immunologists in California

Allergy and immunology is Dr. Gernez-Goldhammer's primary specialty in the NPI Registry, under taxonomy code 207K00000X. Dr. Gernez-Goldhammer is board certified in allergy & immunology by the American Board of Allergy and Immunology. Dmand AI has Dr. Gernez-Goldhammer's licenses on file in 2 states: California and New York.

Specialties and state licenses

  • Allergy and immunology, CaliforniaPrimaryLicense A133624 · 2014 to 2026 · taxonomy 207K00000X
  • New York license2015 to 2025

Clinical focus

Dmand AI lists immune deficiency disease among the conditions Dr. Gernez-Goldhammer treats.

Allergists and immunologists near Dr. Gernez-Goldhammer

Counts of allergists and immunologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Yael Gernez-Goldhammer billed Medicare for 13 services in 2024

CMS data shows 13 Medicare services from Dr. Gernez-Goldhammer across 1 procedure code in 2024, for 23 Medicare patients. Medicare paid $948 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202413
Medicare patients23
Paid by Medicare$948
Procedure codes1

Dr. Gernez-Goldhammer compared with the California median for allergists and immunologists, 2024

  • Dr. Gernez-Goldhammer
  • California median
Medicare services
13vs 1,84099% below
Medicare patients
23vs 14584% below
Part D claims
30vs 25988% below

Medians across 368 allergists and immunologists in California with Dmand AI profiles that report each measure.

Dr. Gernez-Goldhammer's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Gernez-Goldhammer

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Yael Gernez-Goldhammer treated 23 Medicare patients in 2024, average age 68

CMS counts 23 Medicare patients who saw Dr. Gernez-Goldhammer in 2024. 70% of them have high cholesterol, and 65% have high blood pressure. Their average risk score is 2.74, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Gernez-Goldhammer's median patient age at 10, with 42% women.

Medicare patients, 202423
Average age68
Average risk score2.74

Chronic conditions among Dr. Gernez-Goldhammer's Medicare patients, 2024

  1. High cholesterol70%
  2. High blood pressure65%
  3. Arthritis52%

Share of Medicare patients with each condition. A patient can have several.

Dr. Gernez-Goldhammer's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 10

Patient panel by sex, all payers

  • Women42%
  • Men57%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Yael Gernez-Goldhammer wrote 29 Medicare Part D claims in 2024

In 2024, Dr. Gernez-Goldhammer wrote 29 Medicare Part D claims. 59% of them were for generic drugs. They cover 1 drug, with $70,969 in total drug cost. In 2022, CMS named 23 claims across 1 drug.

Part D claims, 202429
Drugs named by CMS1
Total drug cost$70,969

Dr. Gernez-Goldhammer's Part D claims by kind of drug, 2024

  • Generic17 claims59%
  • Brand-name12 claims41%

Dr. Gernez-Goldhammer's most prescribed drugs by claims, 2023

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 232023: 3030%

Drugs named by CMS: 1 in 2023, 1 in 2022.

See all prescribing by Dr. Gernez-Goldhammer

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Yael Gernez-Goldhammer scored 89 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Gernez-Goldhammer for performance year 2024, reported as part of a group. Dr. Gernez-Goldhammer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Gernez-Goldhammer as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Gernez-Goldhammer's MIPS scores, performance year 2024

  • 89of 100Final score
  • 87.1of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 70of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Yael Gernez-Goldhammer received $1,370 in industry payments from 2016 to 2021

CMS Open Payments shows 5 general payments to Dr. Gernez-Goldhammer from 3 drug and device companies from 2016 to 2021. Travel and lodging make up the largest share, 66% of the total. Genentech, Inc. paid the most, $1,224.

General payments to Dr. Gernez-Goldhammer by program year, 2016 to 2021

General payments to Dr. Gernez-Goldhammer by kind, 2016 to 2021

$1.4Kin total
  • Travel and lodging$90366%
  • Food and beverage$41630%
  • Education$524%

Companies that paid Dr. Gernez-Goldhammer the most, 2016 to 2021

Share is of all general payments to this clinician.

See all payments to Dr. Gernez-Goldhammer

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Yael Gernez-Goldhammer graduated from Other

Dr. Gernez-Goldhammer graduated from Other in 1996.

  1. Medical schoolOther
  2. Board certified in allergy & immunologyAmerican Board of Allergy and Immunology
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Yael Gernez-Goldhammer accepts plans from 10 insurance carriers

Dr. Gernez-Goldhammer is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • United Healthcare
  • AK State Medicaid
  • Blue Cross and Blue Shield of Kansas City
  • +2 more carriersWith a free account

Plan types Dr. Gernez-Goldhammer accepts, by number of carriers

  1. Medicare6
  2. PPO5
  3. HMO3
  4. POS3
  5. EPO2
  6. Medicaid2

Source: Dmand AI Insurance Network Data

Sources for Dr. Yael Gernez-Goldhammer's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Yael Gernez-Goldhammer

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Yael Gernez-Goldhammer's NPI number?

Dr. Yael Gernez-Goldhammer's NPI number is 1659792125. It was assigned on December 30, 2013, and it is active in the NPI Registry.

What kind of doctor is Dr. Yael Gernez-Goldhammer?

Dr. Yael Gernez-Goldhammer is an allergist and immunologist in Palo Alto, California. The primary specialty in the NPI Registry is Allergy & Immunology Physician (taxonomy code 207K00000X).

Where does Dr. Yael Gernez-Goldhammer practice?

Dr. Gernez-Goldhammer practices at 725 Welch Road, Palo Alto, CA 94304. Dr. Gernez-Goldhammer's primary practice is Lucile Packard Children's Hospital Stanford in Palo Alto, California, part of Stanford University. Dmand AI also links Dr. Gernez-Goldhammer to 1 medical group.

What is Dr. Yael Gernez-Goldhammer's office phone number?

The practice phone on file for Dr. Gernez-Goldhammer is (650) 497-8000.

What is Dr. Yael Gernez-Goldhammer's medical license number?

Dr. Gernez-Goldhammer holds California license A133624, one of the licenses on file in 2 states.

Which states has Dr. Yael Gernez-Goldhammer been licensed in?

Dmand AI has state licenses on file for Dr. Gernez-Goldhammer in California (2014 to 2026) and New York (2015 to 2025).

Which hospitals is Dr. Yael Gernez-Goldhammer affiliated with?

Dr. Gernez-Goldhammer practices at Lucile Packard Children's Hospital Stanford in Palo Alto, California. Dr. Gernez-Goldhammer is also affiliated with Stanford Hospital at 300 Pasteur Drive.

What medical group is Dr. Yael Gernez-Goldhammer part of?

Dr. Gernez-Goldhammer is linked to Stanford Health Care. Dmand AI links Dr. Gernez-Goldhammer to 1 more medical group.

Does Dr. Yael Gernez-Goldhammer accept Medicare?

Yes. CMS data shows Dr. Gernez-Goldhammer billed Medicare for 13 services in 2024, and Dr. Gernez-Goldhammer accepts Medicare assignment.

Does Dr. Yael Gernez-Goldhammer offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Gernez-Goldhammer as offering telehealth services.

Show 9 more questionsShow fewer questions

What is Dr. Yael Gernez-Goldhammer's MIPS score?

Dr. Gernez-Goldhammer's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.

How many Medicare patients does Dr. Yael Gernez-Goldhammer see?

CMS counts 23 Medicare patients who saw Dr. Gernez-Goldhammer in 2024, with an average age of 68.

Is Dr. Yael Gernez-Goldhammer board certified?

Yes. Dr. Gernez-Goldhammer is board certified in allergy & immunology by the American Board of Allergy and Immunology.

What services does Dr. Yael Gernez-Goldhammer bill to Medicare?

In 2024, Dr. Gernez-Goldhammer's most billed Medicare services were hospital inpatient care (99221).

Where did Dr. Yael Gernez-Goldhammer go to medical school?

Dr. Gernez-Goldhammer graduated from Other in 1996.

What drugs does Dr. Yael Gernez-Goldhammer prescribe most?

In 2023 Medicare Part D data, Dr. Gernez-Goldhammer's most prescribed drugs by claims were Cuvitru.

Has Dr. Yael Gernez-Goldhammer received payments from drug or device companies?

CMS Open Payments shows $1,370 in general payments to Dr. Gernez-Goldhammer from 3 companies from 2016 to 2021. The largest total came from Genentech, Inc.

How long has Dr. Yael Gernez-Goldhammer been practicing?

Dr. Gernez-Goldhammer graduated from medical school in 1996, 30 years ago.

What insurance does Dr. Yael Gernez-Goldhammer accept?

Dr. Gernez-Goldhammer is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

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