Blood Loss, SurgicalCesarean SectionDelivery, Obstetric
Dr. Lisa A. Johnston, MD
NPI1124097779PAC ID6901703453
- Medicare patients, 2024
- 17
- Part D claims, 2024
- 108
- Publications
- 1
- MIPS score, 2024
- 89
- Industry payments
- $12,018
- Practice address
- 5651 Copley Dr, San Diego, CA 92111
- Practice phone
- Call (858) 262-6666
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sharp Rees-Stealy Medical Group, Inc
San Diego, California
Find Dr. Johnston'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. Lisa A. Johnston is an OB-GYN in San Diego, California
Dr. Johnston practices at Sharp Rees-Stealy Medical Group, Inc in San Diego, California.
Dr. Johnston's NPI, 1124097779, was assigned on March 16, 2006. Dr. Johnston graduated from University of Western Ontario in 1994. Dr. Johnston's California license number on file is A105006.
NPI and contact details
- NPI
- 1124097779NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6901703453
- NPI enumeration date
- March 16, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (858) 262-6666
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lisa A. Johnston practices at Sharp Rees-Stealy Medical Group, Inc in San Diego, California
Dr. Johnston's primary practice is Sharp Rees-Stealy Medical Group, Inc, at 5651 Copley Dr, San Diego, CA 92111 in San Diego County. The practice phone is (858) 262-6666.
- Sharp Rees-Stealy Medical Group, Inc5651 Copley Dr, San Diego, CA 92111 · San Diego CountyPhone(858) 262-6666
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Lisa A. Johnston is affiliated with 2 sites of care and 1 medical group
Dr. Johnston's primary practice is Sharp Rees-Stealy Medical Group, Inc in San Diego, California. The medical group on file is Sharp Rees-Stealy Medical Group. Dmand AI also links Dr. Johnston to 1 more group practice or clinic, named with a free account.
Sharp Rees-Stealy Medical Group, IncPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Lisa A. Johnston's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnston practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sharp Rees-Stealy Medical Group, Inc | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lisa A. Johnston is one of 4,642 OB-GYNs in California
Obstetrics and gynecology is Dr. Johnston's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Johnston is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology. Dmand AI has Dr. Johnston's licenses on file in 2 states: California and Michigan.
Specialties and state licenses
- Obstetrics and gynecology, CaliforniaPrimary
- Michigan license
Clinical focus
Dmand AI lists menopause among the conditions Dr. Johnston treats.
OB-GYNs near Dr. Johnston
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. Lisa A. Johnston treated 17 Medicare patients in 2024, average age 66
CMS counts 17 Medicare patients who saw Dr. Johnston in 2024. The largest group is 85 and over, with 0 patients. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Johnston's median patient age at 42, with 97% women.
Medicare patients, 202417
Average age66
Average risk score0.97
Dr. Johnston's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Johnston's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 42
Patient panel by sex, all payers
- Women97%
- Men1%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lisa A. Johnston wrote 108 Medicare Part D claims in 2024
In 2024, Dr. Johnston wrote 108 Medicare Part D claims for 33 patients. 87% of them were for generic drugs. CMS names the drug for 49 of them, across 2 drugs with 11 or more claims each, at $2,735 in total drug cost. In 2023, CMS named 31 claims across 1 drug.
Part D claims, 2024108
Drugs named by CMS2
Total drug cost$2,735
Part D patients33
Dr. Johnston's Part D claims by kind of drug, 2024
- Generic94 claims87%
- Brand-name14 claims13%
Dr. Johnston's most prescribed drugs by claims, 2024
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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 312024: 4958%
Drugs named by CMS: 2 in 2024, 1 in 2023.
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. Lisa A. Johnston 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. Johnston for performance year 2024, reported as part of a group. Dr. Johnston accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Johnston's MIPS scores, performance year 2024
- 89of 100Final score
- 81of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
- 82of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Removal of the uterus: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Lisa A. Johnston has 1 publication on record
Dmand AI links 1 paper to Dr. Johnston in 2022. Dr. Johnston's most frequent co-authors are Yvonne Gollin, MD and Anup Katheria, MD.
Papers1
Dr. Johnston's most frequent co-authors
Recent publications by Dr. Johnston
See who Dr. Johnston researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Johnston works with, so you can find a warm path to the right OB-GYNs.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Lisa A. Johnston received $12,018 in industry payments from 2016 to 2025
CMS Open Payments shows 40 general payments to Dr. Johnston from 5 drug and device companies from 2016 to 2025. Education make up the largest share, 67% of the total. Intuitive Surgical, Inc. paid the most, $11,687.
General payments to Dr. Johnston by program year, 2016 to 2025
General payments to Dr. Johnston by kind, 2016 to 2025
$12Kin total
- Education$8,00067%
- Food and beverage$2,46320%
- Travel and lodging$1,54513%
- Gifts$100%
Companies that paid Dr. Johnston the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lisa A. Johnston has 1 award and honors on record
Dmand AI lists 1 award for Dr. Johnston. Dr. Johnston serves on Ob supervisory committee.
Awards and honors for Dr. Johnston
- Undated
- ACOG Fellow
Dr. Johnston's committees and leadership roles
- Ob supervisory committeeSupervising physician
- 2016 to present
Source: Dmand AI Professional Profile Data
Dr. Lisa A. Johnston graduated from University of Western Ontario
Dr. Johnston graduated from University of Western Ontario in 1994. Dr. Johnston is a member of AAGL.
- Medical school
- Board certified in obstetrics & gynecology
Source: Dmand AI Professional Profile Data
Dr. Lisa A. Johnston accepts plans from 5 insurance carriers
Dr. Johnston is in network with 5 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
Plan types Dr. Johnston accepts, by number of carriers
- HMO3
- POS3
- EPO2
- Medicare2
- PPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Lisa A. Johnston'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Lisa A. Johnston
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. Lisa A. Johnston's NPI number?
Dr. Lisa A. Johnston's NPI number is 1124097779. It was assigned on March 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Lisa A. Johnston?
Dr. Lisa A. Johnston is an OB-GYN in San Diego, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Lisa A. Johnston practice?
Dr. Johnston practices at 5651 Copley Dr, San Diego, CA 92111. Dr. Johnston's primary practice is Sharp Rees-Stealy Medical Group, Inc in San Diego, California. Dmand AI also links Dr. Johnston to 1 group practice or clinic.
What is Dr. Lisa A. Johnston's office phone number?
The practice phone on file for Dr. Johnston is (858) 262-6666.
What is Dr. Lisa A. Johnston's medical license number?
Dr. Johnston's California license number on file is A105006, one of the licenses on file in 2 states.
Which states has Dr. Lisa A. Johnston been licensed in?
Dmand AI has state licenses on file for Dr. Johnston in California (2008 to 2025) and Michigan (1999 to 2009).
What medical group is Dr. Lisa A. Johnston part of?
Dr. Johnston is linked to Sharp Rees-Stealy Medical Group.
Does Dr. Lisa A. Johnston accept Medicare?
Yes. CMS lists Dr. Johnston as accepting Medicare assignment.
What is Dr. Lisa A. Johnston's MIPS score?
Dr. Johnston'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. Lisa A. Johnston see?
CMS counts 17 Medicare patients who saw Dr. Johnston in 2024, with an average age of 66.
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Is Dr. Lisa A. Johnston board certified?
Yes. Dr. Johnston is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology.
Where did Dr. Lisa A. Johnston go to medical school?
Dr. Johnston graduated from University of Western Ontario in 1994.
What drugs does Dr. Lisa A. Johnston prescribe most?
In 2024 Medicare Part D data, Dr. Johnston's most prescribed drugs by claims were Estradiol and Progesterone.
Has Dr. Lisa A. Johnston received payments from drug or device companies?
CMS Open Payments shows $12,018 in general payments to Dr. Johnston from 5 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Lisa A. Johnston been practicing?
Dr. Johnston graduated from medical school in 1994, 32 years ago.
Does Dr. Lisa A. Johnston do research?
Dmand AI links 1 publication to Dr. Johnston.
Who does Dr. Lisa A. Johnston publish with?
Dr. Johnston's most frequent co-authors are Yvonne Gollin, MD (1 shared paper) and Anup Katheria, MD (1 shared paper).
What insurance does Dr. Lisa A. Johnston accept?
Dr. Johnston is in network with 5 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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