Dr. Gary Daniel Macgregor, MD
- Medicare services, 2018
- 156
- Hospital affiliations
- 1
- Industry payments
- $16
- Medical group
- 1
- State license
- 1
- Practice address
- 170 Alameda De Las Pulgas, Redwood City, CA 94062
- Practice phone
- Call (650) 369-5811
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Macgregor's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Gary Daniel Macgregor is an emergency medicine physician in Holtsville, New York
Dr. Macgregor practices at Dignity Health - Sequoia Hospital in Redwood City, California, part of CommonSpirit Health.
Dr. Macgregor's NPI, 1912019555, was assigned on August 31, 2006. Dr. Macgregor graduated from University Of Minnesota Medical School in 1973. Dr. Macgregor's California license number on file is G27051.
- NPI
- 1912019555NPI Registry (opens in a new tab)
- NPI enumeration date
- August 31, 2006
- NPI status
- Active
- Practice phone
- (650) 369-5811
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1973
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gary Daniel Macgregor practices in Redwood City and Holtsville
Dr. Macgregor's primary practice is Dignity Health - Sequoia Hospital, at 170 Alameda De Las Pulgas, Redwood City, CA 94062 in San Mateo County. The practice phone is (650) 369-5811. The NPI Registry lists Dr. Macgregor's practice address as 1150 Portion Rd, Holtsville, NY 11742.
- Dignity Health - Sequoia HospitalPrimary170 Alameda De Las Pulgas, Redwood City, CA 94062 · San Mateo CountyPhone(650) 369-5811
- NPI Registry address1150 Portion Rd, Holtsville, NY 11742 · Suffolk CountyPhone(650) 367-5541
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Gary Daniel Macgregor is affiliated with 1 site of care and 1 medical group
Dr. Macgregor's primary practice is Dignity Health - Sequoia Hospital in Redwood City, California, part of CommonSpirit Health. The medical group on file is Vituity.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gary Daniel Macgregor's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Macgregor practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Sequoia Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gary Daniel Macgregor is one of 3,709 emergency medicine physicians in New York
Emergency medicine is Dr. Macgregor's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Macgregor has a license on file in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Macgregor
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. Gary Daniel Macgregor billed Medicare for 156 services in 2018
CMS data shows 156 Medicare services from Dr. Macgregor across 6 procedure codes in 2018. Medicare paid $9,194 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Macgregor's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Office and hospital visits
- 2017: 2662018: 7671%
- Tests and treatments
- 2017: 1732018: 4673%
- Imaging
- 2017: 1012018: 3466%
Dr. Macgregor compared with the New York median for emergency medicine physicians, 2018
- Dr. Macgregor
- New York median
- Medicare services
- 156vs 21929% below
Medians across 3,510 emergency medicine physicians in New York with Dmand AI profiles that report each measure.
Dr. Macgregor's most billed Medicare procedure codes, 2018
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
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Dr. Gary Daniel Macgregor received $16 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Macgregor from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $16.
Companies that paid Dr. Macgregor the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gary Daniel Macgregor graduated from University Of Minnesota Medical School
Dr. Macgregor graduated from University Of Minnesota Medical School in 1973.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gary Daniel Macgregor's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gary Daniel Macgregor
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. Gary Daniel Macgregor's NPI number?
Dr. Gary Daniel Macgregor's NPI number is 1912019555. It was assigned on August 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gary Daniel Macgregor?
Dr. Gary Daniel Macgregor is an emergency medicine physician in Holtsville, New York. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Gary Daniel Macgregor practice?
Dr. Macgregor practices at 170 Alameda De Las Pulgas, Redwood City, CA 94062. Dr. Macgregor also practices at 1150 Portion Rd, Holtsville, NY 11742. Dr. Macgregor's primary practice is Dignity Health - Sequoia Hospital in Redwood City, California, part of CommonSpirit Health.
What is Dr. Gary Daniel Macgregor's office phone number?
The practice phone on file for Dr. Macgregor is (650) 369-5811.
What is Dr. Gary Daniel Macgregor's medical license number?
Dr. Macgregor's California license number on file is G27051.
Which hospitals is Dr. Gary Daniel Macgregor affiliated with?
Dr. Macgregor practices at Dignity Health - Sequoia Hospital in Redwood City, California.
What medical group is Dr. Gary Daniel Macgregor part of?
Dr. Macgregor is linked to Vituity.
Does Dr. Gary Daniel Macgregor accept Medicare?
Yes. CMS data shows Dr. Macgregor billed Medicare for 156 services in 2018.
What services does Dr. Gary Daniel Macgregor bill to Medicare?
In 2018, Dr. Macgregor's most billed Medicare services were heart test or procedure (93010), emergency department visit (99285) and emergency department visit (99283).
Where did Dr. Gary Daniel Macgregor go to medical school?
Dr. Macgregor graduated from University Of Minnesota Medical School in 1973.
Has Dr. Gary Daniel Macgregor received payments from drug or device companies?
CMS Open Payments shows $16 in general payments to Dr. Macgregor from 1 company from 2018 to 2018. The largest total came from Pfizer Inc.
How long has Dr. Gary Daniel Macgregor been practicing?
Dr. Macgregor graduated from medical school in 1973, 53 years ago.
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