Dr. Mark William Lee Lollar, MD
- Medicare services, 2017
- 66
- Part D claims, 2017
- 18
- Industry payments
- $1,686
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 5201 Norris Canyon Rd, San Ramon, CA 94583-5409
- Practice phone
- Call (925) 327-1500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Patrick A Dawkins
Women's health practice · San Ramon, California
Find Dr. Lollar's professional email, personal email and mobile number
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Dr. Mark William Lee Lollar is an OB-GYN in San Ramon, California
Dr. Lollar practices at Patrick A Dawkins in San Ramon, California.
Dr. Lollar's NPI, 1124119623, was assigned on September 27, 2006. Dr. Lollar graduated from St. George's University School of Medicine in 1987. Dr. Lollar holds California license A50219.
- NPI
- 1124119623NPI Registry (opens in a new tab)
- NPI enumeration date
- September 27, 2006
- NPI status
- Active
- Practice phone
- (925) 327-1500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark William Lee Lollar practices at Patrick A Dawkins in San Ramon, California
Dr. Lollar's primary practice is Patrick A Dawkins, at 5201 Norris Canyon Rd, San Ramon, CA 94583-5409. The practice phone is (925) 327-1500.
- Patrick A Dawkins5201 Norris Canyon Rd, San Ramon, CA 94583-5409Phone(925) 327-1500
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark William Lee Lollar is affiliated with 1 site of care and 1 medical group
Dr. Lollar's primary practice is Patrick A Dawkins in San Ramon, California. Dmand AI also links Dr. Lollar to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Mark William Lee Lollar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lollar practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Patrick A Dawkins | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark William Lee Lollar is one of 4,642 OB-GYNs in California
Obstetrics and gynecology is Dr. Lollar's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Lollar is licensed in California.
Specialties and state licenses
- Obstetrics and gynecology, CaliforniaPrimary
OB-GYNs near Dr. Lollar
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. Mark William Lee Lollar billed Medicare for 66 services in 2017
CMS data shows 66 Medicare services from Dr. Lollar across 2 procedure codes in 2017. Medicare paid $3,141 for them. Every service was in an office.
Dr. Lollar's Medicare services by type, 2016 to 2017
- 2016
- 2017
- Other services
- 2016: 202017: 3365%
- Office and hospital visits
- 2016: 532017: 3338%
Dr. Lollar compared with the California median for OB-GYNs, 2017
- Dr. Lollar
- California median
- Medicare services
- 66vs 5814% above
- Part D claims
- 18vs 3549% below
Medians across 3,823 OB-GYNs in California with Dmand AI profiles that report each measure.
Dr. Lollar's most billed Medicare procedure codes, 2017
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Lollar?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lollar and other OB-GYNs in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark William Lee Lollar's patients have a median age of 50
Across all payers, Dmand AI patient panel data puts Dr. Lollar's median patient age at 50, with 100% women.
Dr. Lollar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 50
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Mark William Lee Lollar wrote 18 Medicare Part D claims in 2017
In 2017, Dr. Lollar wrote 18 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $420 in total drug cost. In 2016, CMS named 20 claims across 1 drug.
Dr. Lollar's most prescribed drugs by claims, 2017
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, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 202017: 1810%
Drugs named by CMS: 1 in 2017, 1 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Mark William Lee Lollar received $1,686 in industry payments from 2016 to 2022
CMS Open Payments shows 7 general payments to Dr. Lollar from 4 drug and device companies from 2016 to 2022. Education make up the largest share, 59% of the total. Intuitive Surgical, Inc. paid the most, $1,147.
General payments to Dr. Lollar by program year, 2016 to 2022
General payments to Dr. Lollar by kind, 2016 to 2022
- Education$1,00059%
- Consulting fees$50030%
- Food and beverage$18611%
Companies that paid Dr. Lollar the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark William Lee Lollar has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Lollar, most recently Regional Top Doctor in 2014.
Awards and honors for Dr. Lollar
- 2014
- Regional Top Doctor
- Undated
- ACOG Fellow
Source: Dmand AI Professional Profile Data
Dr. Mark William Lee Lollar graduated from St. George's University School of Medicine
Dr. Lollar graduated from St. George's University School of Medicine in 1987. Dr. Lollar is a member of American College of Obstetricians and Gynecologists.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark William Lee Lollar'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) |
| 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 |
| 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. Mark William Lee Lollar
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. Mark William Lee Lollar's NPI number?
Dr. Mark William Lee Lollar's NPI number is 1124119623. It was assigned on September 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark William Lee Lollar?
Dr. Mark William Lee Lollar is an OB-GYN in San Ramon, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Mark William Lee Lollar practice?
Dr. Lollar practices at 5201 Norris Canyon Rd, San Ramon, CA 94583-5409. Dr. Lollar's primary practice is Patrick A Dawkins in San Ramon, California. Dmand AI also links Dr. Lollar to 1 medical group.
What is Dr. Mark William Lee Lollar's office phone number?
The practice phone on file for Dr. Lollar is (925) 327-1500.
What is Dr. Mark William Lee Lollar's medical license number?
Dr. Lollar holds California license A50219.
Does Dr. Mark William Lee Lollar accept Medicare?
Yes. CMS data shows Dr. Lollar billed Medicare for 66 services in 2017.
What services does Dr. Mark William Lee Lollar bill to Medicare?
In 2017, Dr. Lollar's most billed Medicare services were office visit, established patient (99213) and medicare service (G0101).
Where did Dr. Mark William Lee Lollar go to medical school?
Dr. Lollar graduated from St. George's University School of Medicine in 1987.
What drugs does Dr. Mark William Lee Lollar prescribe most?
In 2017 Medicare Part D data, Dr. Lollar's most prescribed drugs by claims were Estradiol.
Has Dr. Mark William Lee Lollar received payments from drug or device companies?
CMS Open Payments shows $1,686 in general payments to Dr. Lollar from 4 companies from 2016 to 2022. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Mark William Lee Lollar been practicing?
Dr. Lollar graduated from medical school in 1987, 39 years ago.
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