Gunnar E. Johnson

  • Santa Cruz, CA
  • Physician assistant
NPI1770251993PAC ID3971977380
Medicare patients, 2026
187
Part D claims, 2026
99
MIPS score, 2026
97
Hospital affiliations
3
Medical groups
3
Practice address
1555 Soquel Drive, Santa Cruz, CA 95065
Practice phone
Call (831) 462-7700
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Dignity Health - Dominican Hospital

Hospital · Santa Cruz, California

See all 7 affiliations

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Gunnar E. Johnson is a physician assistant in Santa Cruz, California

Gunnar Johnson practices at Dignity Health - Dominican Hospital in Santa Cruz, California, part of CommonSpirit Health.

Gunnar Johnson's NPI, 1770251993, was assigned on September 1, 2021. Gunnar Johnson holds California license PA62215.

NPI and contact details
Medicare PAC ID
3971977380
NPI enumeration date
September 1, 2021
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(831) 462-7700
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
30
Medical school graduation
2022

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Gunnar E. Johnson practices at Dignity Health - Dominican Hospital in Santa Cruz, California

Gunnar Johnson's primary practice is Dignity Health - Dominican Hospital, at 1555 Soquel Drive, Santa Cruz, CA 95065 in Santa Cruz County. The practice phone is (831) 462-7700.

Source: Dmand AI Affiliation Data

Gunnar E. Johnson is affiliated with 4 sites of care and 3 medical groups

Gunnar Johnson's primary practice is Dignity Health - Dominican Hospital in Santa Cruz, California, part of CommonSpirit Health. Gunnar Johnson is also affiliated with Washington Health. The medical group on file is Vituity. Dmand AI also links Gunnar Johnson to 1 more hospital, 2 medical groups and 1 group practice or clinic, each named with a free account.

See all 7 affiliations for Gunnar Johnson

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Gunnar E. Johnson's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Gunnar Johnson practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Dignity Health - Dominican HospitalAvailable with a free account
+3 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Gunnar E. Johnson is one of 11,482 physician assistants in California

Physician assistant is Gunnar Johnson's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Gunnar Johnson is licensed in California.

Specialties and state licenses

  • Physician assistant, CaliforniaPrimaryLicense PA62215 · taxonomy 363A00000X

Physician assistants near Gunnar Johnson

Counts of physician assistants 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

Gunnar E. Johnson treated 187 Medicare patients in 2026, average age 77

CMS counts 187 Medicare patients who saw Gunnar Johnson in 2026. The largest group is 75 to 84, with 72 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 26% are also on Medicaid. Their average risk score is 1.46, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Gunnar Johnson's median patient age at 38, with 57% women.

Medicare patients, 2026187
Average age77
Average risk score1.46
Also on Medicaid26%

Gunnar Johnson's Medicare patients by age, 2026

Gunnar Johnson's Medicare patients by sex, 2026

  • Women10053%
  • Men8747%

Chronic conditions among Gunnar Johnson's Medicare patients, 2026

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis45%
  4. Ischemic heart disease37%
  5. Chronic kidney disease34%
  6. Mood disorders34%
  7. Depression30%
  8. Diabetes28%

Share of Medicare patients with each condition. A patient can have several.

Gunnar 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 38

Patient panel by sex, all payers

  • Women57%
  • Men43%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data

Gunnar E. Johnson wrote 99 Medicare Part D claims in 2026

In 2026, Gunnar Johnson wrote 99 Medicare Part D claims for 80 patients. 92% of them were for generic drugs.

Part D claims, 202699
Part D patients80

Gunnar Johnson's Part D claims by kind of drug, 2026

  • Generic91 claims92%
  • Brand-name and other8 claims8%

Drug classes CMS tracks in Gunnar Johnson's Part D claims, 2026

  • Antibiotics44%44 of 99 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Source: Medicare Part D Prescribers - by Provider (CMS), 2026 data

Gunnar E. Johnson scored 97 out of 100 in Medicare's MIPS program for 2026

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Gunnar Johnson for performance year 2026, reported as part of a group. Gunnar Johnson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Gunnar Johnson's MIPS scores, performance year 2026

  • 97of 100Final score
  • 90of 100Quality
  • 40of 100Improvement Activities
  • 78of 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), 2026 data

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Sources for Gunnar E. 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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
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 (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)
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 Gunnar E. 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 Gunnar E. Johnson's NPI number?

Gunnar E. Johnson's NPI number is 1770251993. It was assigned on September 1, 2021, and it is active in the NPI Registry.

What does Gunnar E. Johnson specialize in?

Gunnar E. Johnson is a physician assistant in Santa Cruz, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Gunnar E. Johnson practice?

Gunnar Johnson practices at 1555 Soquel Drive, Santa Cruz, CA 95065. Gunnar Johnson's primary practice is Dignity Health - Dominican Hospital in Santa Cruz, California, part of CommonSpirit Health. Dmand AI also links Gunnar Johnson to 1 hospital, 2 medical groups and 1 group practice or clinic, and a free account names each one.

What is Gunnar E. Johnson's office phone number?

The practice phone on file for Gunnar Johnson is (831) 462-7700. Dmand AI also checks direct phone and mobile numbers, available with a free account.

What is Gunnar E. Johnson's email address?

Dmand AI checks professional and personal email addresses for Gunnar Johnson through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.

What is Gunnar E. Johnson's medical license number?

Gunnar Johnson holds California license PA62215.

Which hospitals is Gunnar E. Johnson affiliated with?

Gunnar Johnson practices at Dignity Health - Dominican Hospital in Santa Cruz, California. Gunnar Johnson is also affiliated with Washington Health. Dmand AI links Gunnar Johnson to 1 more hospital, named with a free account.

What medical group is Gunnar E. Johnson part of?

Gunnar Johnson is linked to Vituity. Dmand AI links Gunnar Johnson to 2 more medical groups, named with a free account.

Who does Gunnar E. Johnson practice with?

Dmand AI links 3,130 HCPs to Gunnar Johnson's primary medical group, 888 of them physician assistants. A free account lists them, with verified contacts.

Does Gunnar E. Johnson accept Medicare?

Yes. CMS lists Gunnar Johnson as accepting Medicare assignment.

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What is Gunnar E. Johnson's MIPS score?

Gunnar Johnson's MIPS final score for performance year 2026 is 97 out of 100, reported as part of a group.

How many Medicare patients does Gunnar E. Johnson see?

CMS counts 187 Medicare patients who saw Gunnar Johnson in 2026, with an average age of 77.

How long has Gunnar E. Johnson been practicing?

Gunnar Johnson graduated from medical school in 2022, 4 years ago.

What EHR does Gunnar E. Johnson's practice use?

Dmand AI tracks the EHR system at Dignity Health - Dominican Hospital and at 3 more sites and 2 medical groups. The vendor and product are available with a free Dmand AI account.

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