Dr. Lloyd B. Greig, MD
- Medicare services, 2021
- 28
- Part D claims, 2022
- 17
- Hospital affiliations
- 1
- Industry payments
- $523
- Medical group
- 1
- Practice address
- 6501 Coyle Ave, Carmichael, CA 95608
- Practice phone
- Call (916) 537-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Greig's professional email, personal email and mobile number
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Dr. Lloyd B. Greig is an OB-GYN in Carmichael, California
Dr. Greig practices at Dignity Health - Mercy San Juan Medical Center in Carmichael, California, part of CommonSpirit Health.
Dr. Greig's NPI, 1710999222, was assigned on August 13, 2006. Dr. Greig graduated from Meharry Medical College School of Medicine in 1969. Dr. Greig's California license number on file is A26440.
- NPI
- 1710999222NPI Registry (opens in a new tab)
- NPI enumeration date
- August 13, 2006
- NPI status
- Active
- Practice phone
- (916) 537-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1969
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lloyd B. Greig practices at Dignity Health - Mercy San Juan Medical Center in Carmichael, California
Dr. Greig's primary practice is Dignity Health - Mercy San Juan Medical Center, at 6501 Coyle Ave, Carmichael, CA 95608 in Sacramento County. The practice phone is (916) 537-5000.
- Dignity Health - Mercy San Juan Medical Center6501 Coyle Ave, Carmichael, CA 95608 · Sacramento CountyPhone(916) 537-5000
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lloyd B. Greig is affiliated with 1 site of care and 1 medical group
Dr. Greig's primary practice is Dignity Health - Mercy San Juan Medical Center in Carmichael, 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. Lloyd B. Greig's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greig practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Mercy San Juan Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lloyd B. Greig is one of 4,642 OB-GYNs in California
Obstetrics and gynecology is Dr. Greig's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dmand AI has Dr. Greig's licenses on file in 3 states: California, Georgia and Michigan.
Specialties and state licenses
- Obstetrics and gynecology, CaliforniaPrimary
- Georgia license
- Michigan license
OB-GYNs near Dr. Greig
Counts of OB-GYNs 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. Lloyd B. Greig billed Medicare for 28 services in 2021
CMS data shows 28 Medicare services from Dr. Greig across 2 procedure codes in 2021. Medicare paid $1,309 for them. Every service was in an office.
Dr. Greig's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Other services
- 2020: 292021: 283%
Dr. Greig compared with the California median for OB-GYNs, 2021
- Dr. Greig
- California median
- Medicare services
- 28vs 5852% below
- Part D claims
- 17vs 3551% below
Medians across 3,823 OB-GYNs in California with Dmand AI profiles that report each measure.
Dr. Greig's most billed Medicare procedure codes, 2021
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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Greig and other OB-GYNs in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lloyd B. Greig's patients have a median age of 57
Across all payers, Dmand AI patient panel data puts Dr. Greig's median patient age at 57, with 96% women.
Dr. Greig's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women96%
- Men4%
Source: Dmand AI Patient Panel Data
Dr. Lloyd B. Greig wrote 17 Medicare Part D claims in 2022
In 2022, Dr. Greig wrote 17 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $782 in total drug cost. In 2021, CMS named 104 claims across 4 drugs.
Dr. Greig's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 1042022: 1784%
Drugs named by CMS: 1 in 2022, 4 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Lloyd B. Greig received $523 in industry payments from 2016 to 2021
CMS Open Payments shows 22 general payments to Dr. Greig from 10 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 76% of the total. Merck Sharp & Dohme Corporation paid the most, $130.
General payments to Dr. Greig by program year, 2016 to 2021
General payments to Dr. Greig by kind, 2016 to 2021
- Food and beverage$39976%
- Consulting fees$10019%
- Education$234%
Companies that paid Dr. Greig the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lloyd B. Greig has 1 award and honors on record
Dmand AI lists 1 award for Dr. Greig, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Greig
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Lloyd B. Greig graduated from Meharry Medical College School of Medicine
Dr. Greig graduated from Meharry Medical College School of Medicine in 1969.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Lloyd B. Greig accepts plans from 4 insurance carriers
Dr. Greig is in network with 4 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Elevance
- Aetna
- Blue Cross Blue Shield of Massachusetts
- HCSC
Plan types Dr. Greig accepts, by number of carriers
- Medicare4
- PPO4
- EPO2
- HMO2
- POS2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Lloyd B. Greig'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 | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Lloyd B. Greig
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. Lloyd B. Greig's NPI number?
Dr. Lloyd B. Greig's NPI number is 1710999222. It was assigned on August 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Lloyd B. Greig?
Dr. Lloyd B. Greig is an OB-GYN in Carmichael, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Lloyd B. Greig practice?
Dr. Greig practices at 6501 Coyle Ave, Carmichael, CA 95608. Dr. Greig's primary practice is Dignity Health - Mercy San Juan Medical Center in Carmichael, California, part of CommonSpirit Health.
What is Dr. Lloyd B. Greig's office phone number?
The practice phone on file for Dr. Greig is (916) 537-5000.
What is Dr. Lloyd B. Greig's medical license number?
Dr. Greig's California license number on file is A26440, one of the licenses on file in 3 states.
Which states has Dr. Lloyd B. Greig been licensed in?
Dmand AI has state licenses on file for Dr. Greig in California (1974 to 2025), Georgia (2016 to 2025) and Michigan (1974 to 1990).
Which hospitals is Dr. Lloyd B. Greig affiliated with?
Dr. Greig practices at Dignity Health - Mercy San Juan Medical Center in Carmichael, California.
What medical group is Dr. Lloyd B. Greig part of?
Dr. Greig is linked to Vituity.
Does Dr. Lloyd B. Greig accept Medicare?
Yes. CMS data shows Dr. Greig billed Medicare for 28 services in 2021.
What services does Dr. Lloyd B. Greig bill to Medicare?
In 2021, Dr. Greig's most billed Medicare services were medicare service (G0101) and medicare temporary code (Q0091).
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Where did Dr. Lloyd B. Greig go to medical school?
Dr. Greig graduated from Meharry Medical College School of Medicine in 1969.
What drugs does Dr. Lloyd B. Greig prescribe most?
In 2022 Medicare Part D data, Dr. Greig's most prescribed drugs by claims were Estradiol.
Has Dr. Lloyd B. Greig received payments from drug or device companies?
CMS Open Payments shows $523 in general payments to Dr. Greig from 10 companies from 2016 to 2021. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Lloyd B. Greig been practicing?
Dr. Greig graduated from medical school in 1969, 57 years ago.
What insurance does Dr. Lloyd B. Greig accept?
Dr. Greig is in network with 4 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
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