Dr. Johnny Harrison, MD
- Medicare services, 2024
- 18
- Medicare patients, 2024
- 27
- Part D claims, 2016
- 12
- Industry payments
- $29
- Affiliated sites
- 1
- Practice address
- 18330 Roscoe Blvd, Northridge, CA 91325
- Practice phone
- Call (747) 224-4004
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Valley Physicians Surgery Center
Surgery Center - Medicare-Certified · Northridge, California
Find Dr. Harrison'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. Johnny Harrison is an anesthesiologist in Northridge, California
Dr. Harrison practices at Valley Physicians Surgery Center in Northridge, California.
Dr. Harrison's NPI, 1811962699, was assigned on February 23, 2006. Dr. Harrison graduated from George Washington University School of Medicine and Health Sciences in 1977. Dr. Harrison holds California license A32912.
- NPI
- 1811962699NPI Registry (opens in a new tab)
- NPI enumeration date
- February 23, 2006
- NPI status
- Active
- Practice phone
- (747) 224-4004
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 1977
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Johnny Harrison practices at Valley Physicians Surgery Center in Northridge, California
Dr. Harrison's primary practice is Valley Physicians Surgery Center, at 18330 Roscoe Blvd, Northridge, CA 91325. The practice phone is (747) 224-4004.
- Valley Physicians Surgery Center18330 Roscoe Blvd, Northridge, CA 91325Phone(747) 224-4004
Source: Dmand AI Affiliation Data
Dr. Johnny Harrison is affiliated with 1 site of care
Dr. Harrison's primary practice is Valley Physicians Surgery Center in Northridge, California. Dr. Harrison's employer is on file too: a surgery center (asc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Johnny Harrison's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Harrison practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Valley Physicians Surgery Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Johnny Harrison is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Harrison's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Harrison is board certified in anesthesiology by the American Board of Anesthesiology. Dr. Harrison is licensed in California.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
Anesthesiologists near Dr. Harrison
Counts of anesthesiologists 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. Johnny Harrison billed Medicare for 18 services in 2024
CMS data shows 18 Medicare services from Dr. Harrison across 1 procedure code in 2024, for 27 Medicare patients. Medicare paid $2,144 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Harrison's Medicare services by type, 2020 to 2024
- 2020
- 2024
- Anesthesia
- 2020: 122024: 1850%
Dr. Harrison compared with the California median for anesthesiologists, 2024
- Dr. Harrison
- California median
- Medicare services
- 18vs 7275% below
- Medicare patients
- 27vs 14381% below
- Part D claims
- 12vs 2348% below
Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.
Dr. Harrison'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Harrison and other anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Johnny Harrison treated 27 Medicare patients in 2024, average age 74
CMS counts 27 Medicare patients who saw Dr. Harrison in 2024. The largest group is 65 to 74, with 15 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.01, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Harrison's median patient age at 66, with 52% women.
Dr. Harrison's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Harrison's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Harrison's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
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. Johnny Harrison wrote 12 Medicare Part D claims in 2016
In 2016, Dr. Harrison wrote 12 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $67 in total drug cost.
Dr. Harrison's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Johnny Harrison received $29 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. Harrison from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. Masimo Corporation paid the most, $29.
Companies that paid Dr. Harrison the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Johnny Harrison graduated from George Washington University School of Medicine and Health Sciences
Dr. Harrison graduated from George Washington University School of Medicine and Health Sciences in 1977.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Dr. Johnny Harrison accepts plans from 1 insurance carrier
Dr. Harrison is in network with 1 carrier, including Elevance. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Elevance
Source: Dmand AI Insurance Network Data
Sources for Dr. Johnny Harrison'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) |
| 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. Johnny Harrison
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. Johnny Harrison's NPI number?
Dr. Johnny Harrison's NPI number is 1811962699. It was assigned on February 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Johnny Harrison?
Dr. Johnny Harrison is an anesthesiologist in Northridge, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Johnny Harrison practice?
Dr. Harrison practices at 18330 Roscoe Blvd, Northridge, CA 91325. Dr. Harrison's primary practice is Valley Physicians Surgery Center in Northridge, California.
What is Dr. Johnny Harrison's office phone number?
The practice phone on file for Dr. Harrison is (747) 224-4004.
What is Dr. Johnny Harrison's medical license number?
Dr. Harrison holds California license A32912.
Does Dr. Johnny Harrison accept Medicare?
Yes. CMS data shows Dr. Harrison billed Medicare for 18 services in 2024.
How many Medicare patients does Dr. Johnny Harrison see?
CMS counts 27 Medicare patients who saw Dr. Harrison in 2024, with an average age of 74.
Is Dr. Johnny Harrison board certified?
Yes. Dr. Harrison is board certified in anesthesiology by the American Board of Anesthesiology.
What services does Dr. Johnny Harrison bill to Medicare?
In 2024, Dr. Harrison's most billed Medicare services were anesthesia (00142).
Where did Dr. Johnny Harrison go to medical school?
Dr. Harrison graduated from George Washington University School of Medicine and Health Sciences in 1977.
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What drugs does Dr. Johnny Harrison prescribe most?
In 2016 Medicare Part D data, Dr. Harrison's most prescribed drugs by claims were Isoniazid.
Has Dr. Johnny Harrison received payments from drug or device companies?
CMS Open Payments shows $29 in general payments to Dr. Harrison from 1 company from 2022 to 2022. The largest total came from Masimo Corporation.
How long has Dr. Johnny Harrison been practicing?
Dr. Harrison graduated from medical school in 1977, 49 years ago.
What insurance does Dr. Johnny Harrison accept?
Dr. Harrison is in network with 1 carrier, including Elevance. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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