Dr. Mckenna Maire Johnson, MD
- Medicare services, 2024
- 131
- Medicare patients, 2024
- 51
- Part D claims, 2024
- 14
- Publications
- 3
- MIPS score, 2024
- 91
- Practice address
- 200 W Arbor Dr, San Diego, CA 92103
- Practice phone
- Call (619) 543-6222
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UCSD Hillcrest Medical Center
San Diego, California
Find Dr. Johnson's professional email, personal email and mobile number
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Dr. Mckenna Maire Johnson is a hospitalist in San Diego, California
Dr. Johnson practices at UCSD Hillcrest Medical Center in San Diego, California.
Dr. Johnson's NPI, 1528509718, was assigned on March 20, 2017. Dr. Johnson graduated from Keck School of Medicine of USC in 2017. Dr. Johnson holds California license A161912.
- NPI
- 1528509718NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577999788
- NPI enumeration date
- March 20, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 543-6222
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mckenna Maire Johnson practices at UCSD Hillcrest Medical Center in San Diego, California
Dr. Johnson's primary practice is UCSD Hillcrest Medical Center, at 200 W Arbor Dr, San Diego, CA 92103 in San Diego County. The practice phone is (619) 543-6222.
- UCSD Hillcrest Medical Center200 W Arbor Dr, San Diego, CA 92103 · San Diego CountyPhone(619) 543-6222
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mckenna Maire Johnson is affiliated with 2 sites of care and 1 medical group
Dr. Johnson's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dr. Johnson is also affiliated with Hillcrest Medical Center. The medical group on file is UC San Diego Health.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mckenna Maire Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCSD Hillcrest Medical Center | 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. Mckenna Maire Johnson is one of 3,186 hospitalists in California
Hospitalist is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Johnson is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Johnson's licenses on file in 2 states: California and Virginia.
Specialties and state licenses
- Hospitalist, CaliforniaPrimary
- Virginia license
Hospitalists near Dr. Johnson
Counts of hospitalists 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. Mckenna Maire Johnson billed Medicare for 131 services in 2024
CMS data shows 131 Medicare services from Dr. Johnson across 3 procedure codes in 2024, for 51 Medicare patients. Medicare paid $10,188 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Johnson's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Office and hospital visits
- 2022: 4232024: 13169%
- Tests and treatments
- 2022: 112024: 0100%
- Other services
- 2022: 472024: 0100%
Dr. Johnson compared with the California median for hospitalists, 2024
- Dr. Johnson
- California median
- Medicare services
- 131vs 43070% below
- Medicare patients
- 51vs 20175% below
- Part D claims
- 65vs 696% below
Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.
Dr. Johnson'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mckenna Maire Johnson treated 51 Medicare patients in 2024, average age 70
CMS counts 51 Medicare patients who saw Dr. Johnson in 2024. The largest group is 65 to 74, with 21 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 47% are also on Medicaid. Their average risk score is 3.39, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 65, with 52% women.
Dr. Johnson's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Johnson's Medicare patients by sex, 2024
- Women2651%
- Men2549%
Chronic conditions among Dr. Johnson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Mood disorders65%
- Arthritis63%
- Depression61%
- Diabetes51%
- Ischemic heart disease51%
- Chronic kidney disease43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Johnson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mckenna Maire Johnson wrote 14 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 14 Medicare Part D claims. 93% of them were for generic drugs. They cover 4 drugs, with $758 in total drug cost. In 2022, CMS named 423 claims across 19 drugs.
Dr. Johnson's Part D claims by kind of drug, 2024
- Generic13 claims93%
- Brand-name and other1 claims7%
Dr. Johnson's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 4232023: 6585%
Drugs named by CMS: 4 in 2023, 19 in 2022.
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. Mckenna Maire Johnson scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Johnson for performance year 2024, reported as part of a group. Dr. Johnson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Johnson's MIPS scores, performance year 2024
- 91of 100Final score
- 84.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 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. Mckenna Maire Johnson has 3 publications on record
Dmand AI links 3 papers to Dr. Johnson, published from 2020 to 2022. 2022 was the busiest year, with 2. Dr. Johnson's most frequent co-authors are Amy Lauren Cummings, Jonathan Wade Goldman, MD and Bakri Kulla, MD.
Dr. Johnson's most frequent co-authors
- Amy Lauren Cummings1 shared paper
- Jonathan Wade Goldman, MD1 shared paper
- Bakri Kulla, MD1 shared paper
Recent publications by Dr. Johnson
Semin Respir Crit Care Med
See who Dr. Johnson researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Johnson works with, so you can find a warm path to the right hospitalists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mckenna Maire Johnson received $23 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Johnson from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $23.
Companies that paid Dr. Johnson the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mckenna Maire Johnson graduated from Keck School of Medicine of USC
Dr. Johnson graduated from Keck School of Medicine of USC in 2017.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Mckenna Maire Johnson accepts plans from 2 insurance carriers
Dr. Johnson is in network with 2 carriers, including CMS Medicare and NC State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
- NC State Medicaid
Plan types Dr. Johnson accepts, by number of carriers
- Medicaid1
- Medicare1
Source: Dmand AI Insurance Network Data
Sources for Dr. Mckenna Maire Johnson'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 DataDmand 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 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) |
| 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) |
| 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. Mckenna Maire Johnson
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. Mckenna Maire Johnson's NPI number?
Dr. Mckenna Maire Johnson's NPI number is 1528509718. It was assigned on March 20, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Mckenna Maire Johnson?
Dr. Mckenna Maire Johnson is a hospitalist in San Diego, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Mckenna Maire Johnson practice?
Dr. Johnson practices at 200 W Arbor Dr, San Diego, CA 92103. Dr. Johnson's primary practice is UCSD Hillcrest Medical Center in San Diego, California.
What is Dr. Mckenna Maire Johnson's office phone number?
The practice phone on file for Dr. Johnson is (619) 543-6222.
What is Dr. Mckenna Maire Johnson's medical license number?
Dr. Johnson holds California license A161912, one of the licenses on file in 2 states.
Which states has Dr. Mckenna Maire Johnson been licensed in?
Dmand AI has state licenses on file for Dr. Johnson in California (2019 to 2027) and Virginia (2020 to 2024).
Which hospitals is Dr. Mckenna Maire Johnson affiliated with?
Dr. Johnson is affiliated with Hillcrest Medical Center.
What medical group is Dr. Mckenna Maire Johnson part of?
Dr. Johnson is linked to UC San Diego Health.
Does Dr. Mckenna Maire Johnson accept Medicare?
Yes. CMS data shows Dr. Johnson billed Medicare for 131 services in 2024, and Dr. Johnson accepts Medicare assignment.
What is Dr. Mckenna Maire Johnson's MIPS score?
Dr. Johnson's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Mckenna Maire Johnson see?
CMS counts 51 Medicare patients who saw Dr. Johnson in 2024, with an average age of 70.
Is Dr. Mckenna Maire Johnson board certified?
Yes. Dr. Johnson is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Mckenna Maire Johnson bill to Medicare?
In 2024, Dr. Johnson's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99238).
Where did Dr. Mckenna Maire Johnson go to medical school?
Dr. Johnson graduated from Keck School of Medicine of USC in 2017.
What drugs does Dr. Mckenna Maire Johnson prescribe most?
In 2023 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Amlodipine Besylate, Atorvastatin Calcium and Levothyroxine Sodium.
Has Dr. Mckenna Maire Johnson received payments from drug or device companies?
CMS Open Payments shows $23 in general payments to Dr. Johnson from 1 company from 2025 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Mckenna Maire Johnson been practicing?
Dr. Johnson graduated from medical school in 2017, 9 years ago.
Does Dr. Mckenna Maire Johnson do research?
Dmand AI links 3 publications to Dr. Johnson, published from 2020 to 2022.
Who does Dr. Mckenna Maire Johnson publish with?
Dr. Johnson's most frequent co-authors are Amy Lauren Cummings (1 shared paper), Jonathan Wade Goldman, MD (1 shared paper) and Bakri Kulla, MD (1 shared paper).
What insurance does Dr. Mckenna Maire Johnson accept?
Dr. Johnson is in network with 2 carriers, including CMS Medicare and NC State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.
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