Dr. Mckenna Maire Johnson, MD

  • San Diego, CA
  • Hospitalist
NPI1528509718PAC ID3577999788
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
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Personal email
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Mobile number
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Social profiles

Primary practice

UCSD Hillcrest Medical Center

San Diego, California

See all 3 affiliations

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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 and contact details
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
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Mobile number
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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 Center
    200 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.

See all 3 affiliations for Dr. Johnson

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.

EHR by site
SiteEHR vendor and product
UCSD Hillcrest Medical CenterAvailable with a free account
+1 more affiliated siteAvailable 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, CaliforniaPrimaryLicense A161912 · 2019 to 2027 · taxonomy 208M00000X
  • Virginia license2020 to 2024

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.

Medicare services, 2024131
Medicare patients51
Paid by Medicare$10,188
Procedure codes3

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.

See all procedures by Dr. Johnson

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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.

Medicare patients, 202451
Average age70
Average risk score3.39
Also on Medicaid47%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Mood disorders65%
  4. Arthritis63%
  5. Depression61%
  6. Diabetes51%
  7. Ischemic heart disease51%
  8. 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.

Part D claims, 202414
Drugs named by CMS4
Total drug cost$758

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.

See all prescribing by Dr. Johnson

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.

Papers3
Years published2020 to 2022

Dr. Johnson's most frequent co-authors

Recent publications by Dr. Johnson

See all 3 publications and co-authors

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.

How network discovery works

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.

See all payments to Dr. Johnson

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.

  1. Medical schoolKeck School of Medicine of USC
  2. Board certified in internal medicineAmerican Board of 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

  1. Medicaid1
  2. Medicare1

Source: Dmand AI Insurance Network Data

Sources for Dr. Mckenna Maire Johnson's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand 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.

Show 10 more questionsShow fewer questions

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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