Christopher Tyler Key, PA-C
- Medicare services, 2024
- 665
- Medicare patients, 2024
- 421
- Hospital affiliations
- 2
- Medical groups
- 2
- State licenses
- 2
- Practice address
- 2540 East St, Concord, CA 94520
- Practice phone
- Call (925) 682-8200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Christopher Key's professional email, personal email and mobile number
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Christopher Tyler Key is a physician assistant in Concord, California
Christopher Key practices at Concord Medical Center in Concord, California, part of John Muir Health.
Christopher Key's NPI, 1396093902, was assigned on August 29, 2012. Christopher Key holds California license PA22499.
- NPI
- 1396093902NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678724994
- NPI enumeration date
- August 29, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (925) 682-8200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Christopher Tyler Key practices at Concord Medical Center in Concord, California
Christopher Key's primary practice is Concord Medical Center, at 2540 East St, Concord, CA 94520 in Contra Costa County. The practice phone is (925) 682-8200.
- Concord Medical Center2540 East St, Concord, CA 94520 · Contra Costa CountyPhone(925) 682-8200
Source: Dmand AI Affiliation Data
Christopher Tyler Key is affiliated with 3 sites of care and 2 medical groups
Christopher Key's primary practice is Concord Medical Center in Concord, California, part of John Muir Health. Christopher Key is also affiliated with John Muir Medical Center, Walnut Creek. The medical group on file is Vituity. Dmand AI also links Christopher Key to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Christopher Tyler Key's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Christopher Key practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Concord Medical Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across John Muir Health and 6.2K+ hospitals, with verified contacts in the same login.
Christopher Tyler Key is one of 11,482 physician assistants in California
Physician assistant is Christopher Key's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Christopher Key is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Dmand AI has Christopher Key's licenses on file in 2 states: California and Oregon.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
- Oregon license
Clinical focus
Dmand AI lists arthritis and neck pain and spine problems among the conditions Christopher Key treats.
Physician assistants near Christopher Key
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
Christopher Tyler Key billed Medicare for 665 services in 2024
CMS data shows 665 Medicare services from Christopher Key across 5 procedure codes in 2024, for 421 Medicare patients. Medicare paid $71,513 for them. Every service was in an office.
Christopher Key's Medicare services by type, 2024
- Office and hospital visits416
- Tests and treatments232
- Surgery17
Christopher Key compared with the California median for physician assistants, 2024
- Christopher Key
- California median
- Medicare services
- 665vs 2043.3 times
- Medicare patients
- 421vs 1054.0 times
Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.
Christopher Key'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 Christopher Key and other physician assistants in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Christopher Tyler Key treated 421 Medicare patients in 2024, average age 75
CMS counts 421 Medicare patients who saw Christopher Key in 2024. The largest group is 65 to 74, with 173 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% are also on Medicaid. Their average risk score is 1.42, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Christopher Key's median patient age at 64, with 55% women.
Christopher Key's Medicare patients by age, 2024
Christopher Key's Medicare patients by sex, 2024
- Women22553%
- Men19647%
Chronic conditions among Christopher Key's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis68%
- Diabetes35%
- Chronic kidney disease32%
- Mood disorders32%
- Depression28%
- Ischemic heart disease27%
Share of Medicare patients with each condition. A patient can have several.
Christopher Key's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women55%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Christopher Tyler Key takes part in Medicare
Christopher Key accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Christopher Tyler Key is board certified in certified physician assistant
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Christopher Tyler Key'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 Christopher Tyler Key
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Christopher Tyler Key's NPI number?
Christopher Tyler Key's NPI number is 1396093902. It was assigned on August 29, 2012, and it is active in the NPI Registry.
What does Christopher Tyler Key specialize in?
Christopher Tyler Key is a physician assistant in Concord, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Christopher Tyler Key practice?
Christopher Key practices at 2540 East St, Concord, CA 94520. Christopher Key's primary practice is Concord Medical Center in Concord, California, part of John Muir Health. Dmand AI also links Christopher Key to 1 group practice or clinic and 1 medical group.
What is Christopher Tyler Key's office phone number?
The practice phone on file for Christopher Key is (925) 682-8200.
What is Christopher Tyler Key's medical license number?
Christopher Key holds California license PA22499, one of the licenses on file in 2 states.
Which states has Christopher Tyler Key been licensed in?
Dmand AI has state licenses on file for Christopher Key in California and Oregon.
Which hospitals is Christopher Tyler Key affiliated with?
Christopher Key practices at Concord Medical Center in Concord, California. Christopher Key is also affiliated with John Muir Medical Center, Walnut Creek.
What medical group is Christopher Tyler Key part of?
Christopher Key is linked to Vituity. Dmand AI links Christopher Key to 1 more medical group.
Does Christopher Tyler Key accept Medicare?
Yes. CMS data shows Christopher Key billed Medicare for 665 services in 2024, and Christopher Key accepts Medicare assignment.
How many Medicare patients does Christopher Tyler Key see?
CMS counts 421 Medicare patients who saw Christopher Key in 2024, with an average age of 75.
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Is Christopher Tyler Key board certified?
Yes. Christopher Key is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
What services does Christopher Tyler Key bill to Medicare?
In 2024, Christopher Key's most billed Medicare services were office visit, new patient (99205), heart test or procedure (93005) and office visit, established patient (99215).
How long has Christopher Tyler Key been practicing?
Christopher Key graduated from medical school in 2012, 14 years ago.
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