Dr. Gregory Halsey Gilbert, MD

  • Redwood City, CA
  • Emergency medicine physician
NPI1740324151PAC ID6709935265
Medicare services, 2024
55
Medicare patients, 2024
76
Part D claims, 2024
41
Publications
12
MIPS score, 2024
85
Practice address
1100 Veterans Boulevard, Redwood City, CA 94063
Practice phone
Call (650) 299-2000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Redwood City Medical Center

Hospital · Redwood City, California

See all 5 affiliations

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Dr. Gregory Halsey Gilbert is an emergency medicine physician in Redwood City, California

Dr. Gilbert practices at Redwood City Medical Center in Redwood City, California, part of Kaiser Permanente.

Dr. Gilbert's NPI, 1740324151, was assigned on February 18, 2007. Dr. Gilbert graduated from SUNY Downstate Health Sciences University in 1998. Dr. Gilbert holds California license A75504.

NPI and contact details
Medicare PAC ID
6709935265
NPI enumeration date
February 18, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(650) 299-2000
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
54
Medical school graduation
1998

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

Dr. Gregory Halsey Gilbert practices at Redwood City Medical Center in Redwood City, California

Dr. Gilbert's primary practice is Redwood City Medical Center, at 1100 Veterans Boulevard, Redwood City, CA 94063 in San Mateo County. The practice phone is (650) 299-2000.

Source: Dmand AI Affiliation Data

Dr. Gregory Halsey Gilbert is affiliated with 2 sites of care and 3 medical groups

Dr. Gilbert's primary practice is Redwood City Medical Center in Redwood City, California, part of Kaiser Permanente. Dr. Gilbert is also affiliated with Stanford Hospital at 300 Pasteur Drive. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Gilbert to 2 more medical groups, each named with a free account.

See all 5 affiliations for Dr. Gilbert

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

Dmand AI tracks the EHR system at Dr. Gregory Halsey Gilbert's practice

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

EHR by site
SiteEHR vendor and product
Redwood City Medical CenterAvailable with a free account
+1 more site and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Gregory Halsey Gilbert is one of 7,423 emergency medicine physicians in California

Emergency medicine is Dr. Gilbert's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Gilbert is board certified in emergency medical services by the American Board of Emergency Medicine. Dmand AI has Dr. Gilbert's licenses on file in 3 states: California, Hawaii and Georgia.

Specialties and state licenses

  • Emergency medicine, CaliforniaPrimaryLicense A75504 · 2001 to 2026 · taxonomy 207P00000X
  • Hawaii license2020 to 2022
  • Georgia license1999 to 2001

Emergency medicine physicians near Dr. Gilbert

Counts of emergency medicine physicians 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. Gregory Halsey Gilbert billed Medicare for 55 services in 2024

CMS data shows 55 Medicare services from Dr. Gilbert across 3 procedure codes in 2024, all of them office visits, for 76 Medicare patients. Medicare paid $4,044 for them. Every service was in an office.

Medicare services, 202455
Medicare patients76
Paid by Medicare$4,044
Procedure codes3

Dr. Gilbert's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 242024: 55129%

Dr. Gilbert compared with the California median for emergency medicine physicians, 2024

  • Dr. Gilbert
  • California median
Medicare services
55vs 26579% below
Medicare patients
76vs 24369% below

Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.

Dr. Gilbert'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. Gilbert

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

Dr. Gregory Halsey Gilbert treated 76 Medicare patients in 2024, average age 75

CMS counts 76 Medicare patients who saw Dr. Gilbert in 2024. The largest group is 65 to 74, with 41 patients. 74% of them have high cholesterol, and 59% have high blood pressure. Their average risk score is 0.78, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Gilbert's median patient age at 41, with 56% women.

Medicare patients, 202476
Average age75
Average risk score0.78

Dr. Gilbert's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Gilbert's Medicare patients by sex, 2024

  • Women4661%
  • Men3039%

Chronic conditions among Dr. Gilbert's Medicare patients, 2024

  1. High cholesterol74%
  2. High blood pressure59%
  3. Arthritis34%
  4. Osteoporosis28%
  5. Diabetes25%
  6. Chronic kidney disease18%
  7. Ischemic heart disease18%
  8. Anxiety16%

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

Dr. Gilbert's patients across all payers

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

Patient panel by age, all payers

Median age 41

Patient panel by sex, all payers

  • Women56%
  • Men43%

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

Dr. Gregory Halsey Gilbert wrote 41 Medicare Part D claims in 2024

In 2024, Dr. Gilbert wrote 41 Medicare Part D claims for 30 patients. 95% of them were for generic drugs.

Part D claims, 202441
Part D patients30

Dr. Gilbert's Part D claims by kind of drug, 2024

  • Generic39 claims95%
  • Brand-name and other2 claims5%

Drug classes CMS tracks in Dr. Gilbert's Part D claims, 2024

  • Antibiotics66%27 of 41 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Gregory Halsey Gilbert scored 85 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Gilbert for performance year 2024, reported as part of a group. Dr. Gilbert accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Gilbert's MIPS scores, performance year 2024

  • 85of 100Final score
  • 80.1of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 71of 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. Gregory Halsey Gilbert has 12 publications on record

Dmand AI links 12 papers to Dr. Gilbert, published from 2009 to 2023. The most frequent topics are California, Advanced Cardiac Life Support and Computer-Assisted Instruction. Dr. Gilbert has published most often in Acad Emerg Med. Dr. Gilbert's most frequent co-authors are Eric Rudnick, MD, Angelo A. Salvucci, MD and Karl Anthony Sporer, MD.

Papers12
Years published2009 to 2023

Dr. Gilbert's papers by year, 2009 to 2023

Topics Dr. Gilbert writes about most

  • California
  • Advanced Cardiac Life Support
  • Computer-Assisted Instruction
  • Emergency Medical Services
  • Emergency Service, Hospital
  • India
  • Nitroglycerin
  • Oxygen

Dr. Gilbert's most frequent co-authors

Recent publications by Dr. Gilbert

See all 12 publications and co-authors

See who Dr. Gilbert researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gilbert works with, so you can find a warm path to the right emergency medicine physicians.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Gregory Halsey Gilbert received $36,512 in industry payments from 2016 to 2022

CMS Open Payments shows 31 general payments to Dr. Gilbert from 3 drug and device companies from 2016 to 2022. Speaker and faculty fees make up the largest share, 84% of the total. Genentech, Inc. paid the most, $36,416.

General payments to Dr. Gilbert by program year, 2016 to 2022

General payments to Dr. Gilbert by kind, 2016 to 2022

$36.5Kin total
  • Speaker and faculty fees$30,51084%
  • Travel and lodging$4,58213%
  • Food and beverage$1,4194%

Companies that paid Dr. Gilbert the most, 2016 to 2022

Share is of all general payments to this clinician.

See all payments to Dr. Gilbert

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

Dr. Gregory Halsey Gilbert graduated from SUNY Downstate Health Sciences University

Dr. Gilbert graduated from SUNY Downstate Health Sciences University in 1998.

  1. Medical schoolSUNY Downstate Health Sciences University
  2. Board certified in emergency medical servicesAmerican Board of Emergency Medicine
  3. Board certified in emergency medicineAmerican Board of Emergency Medicine

Source: Dmand AI Professional Profile Data

Dr. Gregory Halsey Gilbert accepts plans from 3 insurance carriers

Dr. Gilbert is in network with 3 carriers, including Kaiser Permanente, AK State Medicaid and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • Kaiser Permanente
  • AK State Medicaid
  • CMS Medicare

Plan types Dr. Gilbert accepts, by number of carriers

  1. EPO1
  2. HMO1
  3. Medicaid1
  4. Medicare1
  5. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Gregory Halsey Gilbert'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 (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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
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. Gregory Halsey Gilbert

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. Gregory Halsey Gilbert's NPI number?

Dr. Gregory Halsey Gilbert's NPI number is 1740324151. It was assigned on February 18, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Gregory Halsey Gilbert?

Dr. Gregory Halsey Gilbert is an emergency medicine physician in Redwood City, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Gregory Halsey Gilbert practice?

Dr. Gilbert practices at 1100 Veterans Boulevard, Redwood City, CA 94063. Dr. Gilbert's primary practice is Redwood City Medical Center in Redwood City, California, part of Kaiser Permanente. Dmand AI also links Dr. Gilbert to 2 medical groups.

What is Dr. Gregory Halsey Gilbert's office phone number?

The practice phone on file for Dr. Gilbert is (650) 299-2000.

What is Dr. Gregory Halsey Gilbert's medical license number?

Dr. Gilbert holds California license A75504, one of the licenses on file in 3 states.

Which states has Dr. Gregory Halsey Gilbert been licensed in?

Dmand AI has state licenses on file for Dr. Gilbert in California (2001 to 2026), Hawaii (2020 to 2022) and Georgia (1999 to 2001).

Which hospitals is Dr. Gregory Halsey Gilbert affiliated with?

Dr. Gilbert practices at Redwood City Medical Center in Redwood City, California. Dr. Gilbert is also affiliated with Stanford Hospital at 300 Pasteur Drive.

What medical group is Dr. Gregory Halsey Gilbert part of?

Dr. Gilbert is linked to The Permanente Medical Group, Inc. Dmand AI links Dr. Gilbert to 2 more medical groups.

Does Dr. Gregory Halsey Gilbert accept Medicare?

Yes. CMS data shows Dr. Gilbert billed Medicare for 55 services in 2024, and Dr. Gilbert accepts Medicare assignment.

What is Dr. Gregory Halsey Gilbert's MIPS score?

Dr. Gilbert's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.

Show 9 more questionsShow fewer questions

How many Medicare patients does Dr. Gregory Halsey Gilbert see?

CMS counts 76 Medicare patients who saw Dr. Gilbert in 2024, with an average age of 75.

Is Dr. Gregory Halsey Gilbert board certified?

Yes. Dr. Gilbert is board certified in emergency medical services by the American Board of Emergency Medicine.

What services does Dr. Gregory Halsey Gilbert bill to Medicare?

In 2024, Dr. Gilbert's most billed Medicare services were office visit, new patient (99203), office visit, established patient (99213) and office visit, established patient (99214).

Where did Dr. Gregory Halsey Gilbert go to medical school?

Dr. Gilbert graduated from SUNY Downstate Health Sciences University in 1998.

Has Dr. Gregory Halsey Gilbert received payments from drug or device companies?

CMS Open Payments shows $36,512 in general payments to Dr. Gilbert from 3 companies from 2016 to 2022. The largest total came from Genentech, Inc.

How long has Dr. Gregory Halsey Gilbert been practicing?

Dr. Gilbert graduated from medical school in 1998, 28 years ago.

Does Dr. Gregory Halsey Gilbert do research?

Dmand AI links 12 publications to Dr. Gilbert, published from 2009 to 2023.

Who does Dr. Gregory Halsey Gilbert publish with?

Dr. Gilbert's most frequent co-authors are Eric Rudnick, MD (4 shared papers), Angelo A. Salvucci, MD (4 shared papers) and Karl Anthony Sporer, MD (4 shared papers).

What insurance does Dr. Gregory Halsey Gilbert accept?

Dr. Gilbert is in network with 3 carriers, including Kaiser Permanente, AK State Medicaid and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

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