Michael S. Johnson, PA
- Medicare services, 2024
- 50
- Medicare patients, 2024
- 58
- Part D claims, 2024
- 80
- Hospital affiliations
- 2
- Medical group
- 1
- Practice address
- 12401 Washington Blvd, Whittier, CA 90602
- Practice phone
- Call (562) 698-0811
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Michael S. Johnson is a physician assistant in Whittier, California
Michael Johnson practices at PIH Health Whittier Hospital in Whittier, California, part of PIH Health.
Michael Johnson's NPI, 1497791263, was assigned on June 21, 2006. Michael Johnson holds California license PA13952.
- NPI
- 1497791263NPI Registry (opens in a new tab)
- NPI enumeration date
- June 21, 2006
- NPI status
- Active
- Practice phone
- (562) 698-0811
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Michael S. Johnson practices at PIH Health Whittier Hospital in Whittier, California
Michael Johnson's primary practice is PIH Health Whittier Hospital, at 12401 Washington Blvd, Whittier, CA 90602 in Los Angeles County. The practice phone is (562) 698-0811.
- PIH Health Whittier Hospital12401 Washington Blvd, Whittier, CA 90602 · Los Angeles CountyPhone(562) 698-0811
Source: Dmand AI Affiliation Data
Michael S. Johnson is affiliated with 2 sites of care and 1 medical group
Michael Johnson's primary practice is PIH Health Whittier Hospital in Whittier, California, part of PIH Health. The medical group on file is Intercommunity Emergency Medical Group. Dmand AI also links Michael Johnson to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Michael S. Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Michael Johnson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| PIH Health Whittier Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Michael S. Johnson is one of 11,482 physician assistants in California
Physician assistant is Michael Johnson's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Michael Johnson is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Michael Johnson is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Michael 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
Michael S. Johnson billed Medicare for 50 services in 2024
CMS data shows 50 Medicare services from Michael Johnson across 1 procedure code in 2024, for 58 Medicare patients. Medicare paid $3,032 for them. Every service was in a facility, such as a hospital, rather than an office.
Michael Johnson compared with the California median for physician assistants, 2024
- Michael Johnson
- California median
- Medicare services
- 50vs 20475% below
- Medicare patients
- 58vs 10545% below
- Part D claims
- 25vs 24390% below
Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.
Michael 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
Michael S. Johnson treated 58 Medicare patients in 2024, average age 68
CMS counts 58 Medicare patients who saw Michael Johnson in 2024. The largest group is 65 to 74, with 21 patients. 72% of them have high cholesterol, and 67% have high blood pressure. 48% are also on Medicaid. Their average risk score is 1.19, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Michael Johnson's median patient age at 34, with 51% women.
Michael Johnson's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Michael Johnson's Medicare patients by sex, 2024
- Women2950%
- Men2950%
Chronic conditions among Michael Johnson's Medicare patients, 2024
- High cholesterol72%
- High blood pressure67%
- Anxiety29%
- Diabetes29%
- Mood disorders28%
- Arthritis26%
- Depression24%
- Ischemic heart disease24%
Share of Medicare patients with each condition. A patient can have several.
Michael 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 34
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Michael S. Johnson wrote 80 Medicare Part D claims in 2024
In 2024, Michael Johnson wrote 80 Medicare Part D claims for 68 patients. 98% of them were for generic drugs. CMS names the drug for 25 of them, across 2 drugs with 11 or more claims each, at $142 in total drug cost.
Michael Johnson's Part D claims by kind of drug, 2024
- Generic78 claims98%
- Brand-name and other2 claims3%
Michael Johnson'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.
Drug classes CMS tracks in Michael Johnson's Part D claims, 2024
- Antibiotics30%24 of 80 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
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Michael S. Johnson is board certified in certified physician assistant
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Michael S. 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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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) |
| 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 Michael S. 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 Michael S. Johnson's NPI number?
Michael S. Johnson's NPI number is 1497791263. It was assigned on June 21, 2006, and it is active in the NPI Registry.
What does Michael S. Johnson specialize in?
Michael S. Johnson is a physician assistant in Whittier, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Michael S. Johnson practice?
Michael Johnson practices at 12401 Washington Blvd, Whittier, CA 90602. Michael Johnson's primary practice is PIH Health Whittier Hospital in Whittier, California, part of PIH Health. Dmand AI also links Michael Johnson to 1 hospital.
What is Michael S. Johnson's office phone number?
The practice phone on file for Michael Johnson is (562) 698-0811.
What is Michael S. Johnson's medical license number?
Michael Johnson holds California license PA13952.
Which hospitals is Michael S. Johnson affiliated with?
Michael Johnson practices at PIH Health Whittier Hospital in Whittier, California. Dmand AI links Michael Johnson to 1 more hospital.
What medical group is Michael S. Johnson part of?
Michael Johnson is linked to Intercommunity Emergency Medical Group.
Does Michael S. Johnson accept Medicare?
Yes. CMS data shows Michael Johnson billed Medicare for 50 services in 2024.
How many Medicare patients does Michael S. Johnson see?
CMS counts 58 Medicare patients who saw Michael Johnson in 2024, with an average age of 68.
Is Michael S. Johnson board certified?
Yes. Michael Johnson is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
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What services does Michael S. Johnson bill to Medicare?
In 2024, Michael Johnson's most billed Medicare services were emergency department visit (99284).
What drugs does Michael S. Johnson prescribe most?
In 2024 Medicare Part D data, Michael Johnson's most prescribed drugs by claims were Ibuprofen and Diclofenac Sodium.
How long has Michael S. Johnson been practicing?
Michael Johnson graduated from medical school in 1996, 30 years ago.
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