John A. Shields, CRNA
- Medicare patients, 2024
- 39
- Hospital affiliations
- 1
- Industry payments
- $138
- Medical group
- 1
- State license
- 1
- Practice address
- 1300 22nd S Ave, Nashville, TN 37212
- Practice phone
- Call (615) 936-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Vanderbilt Medical Group
Nashville, Tennessee
Find John Shields' 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.
John A. Shields is a nurse anesthetist in Nashville, Tennessee
John Shields practices at Vanderbilt Medical Group in Nashville, Tennessee.
John Shields' NPI, 1558458661, was assigned on October 9, 2006. John Shields holds Tennessee license APN9198.
- NPI
- 1558458661NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486782117
- NPI enumeration date
- October 9, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (615) 936-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
John A. Shields practices at Vanderbilt Medical Group in Nashville, Tennessee
John Shields' primary practice is Vanderbilt Medical Group, at 1300 22nd S Ave, Nashville, TN 37212 in Davidson County. The practice phone is (615) 936-2000.
- Vanderbilt Medical Group1300 22nd S Ave, Nashville, TN 37212 · Davidson CountyPhone(615) 936-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
John A. Shields is affiliated with 3 sites of care and 1 medical group
John Shields' primary practice is Vanderbilt Medical Group in Nashville, Tennessee. John Shields is also affiliated with Vanderbilt University Medical Center. The medical group on file is Vanderbilt University Medical Center. Dmand AI also links John Shields to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at John A. Shields' practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Shields practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Vanderbilt Medical Group | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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John A. Shields is one of 2,442 nurse anesthetists in Tennessee
Nurse anesthetist, certified registered is John Shields' primary specialty in the NPI Registry, under taxonomy code 367500000X. John Shields is licensed in Tennessee.
Specialties and state licenses
- Certified registered nurse anesthetist, TennesseePrimary
Nurse anesthetists near John Shields
Counts of nurse anesthetists 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
John A. Shields treated 39 Medicare patients in 2024, average age 73
CMS counts 39 Medicare patients who saw John Shields in 2024. The largest group is 65 to 74, with 17 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.75, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts John Shields' median patient age at 58, with 19% women.
John Shields' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
John Shields' Medicare patients by sex, 2024
- Women1641%
- Men2359%
Chronic conditions among John Shields' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Atrial fibrillation72%
- Heart failure56%
- Ischemic heart disease56%
- Arthritis49%
- Diabetes46%
- Chronic kidney disease38%
Share of Medicare patients with each condition. A patient can have several.
John Shields' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women19%
- Men81%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How John A. Shields takes part in Medicare
John Shields 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)
John A. Shields received $138 in industry payments in 2025
CMS Open Payments shows 1 general payment to John Shields from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Fisher & Paykel Healthcare Inc paid the most, $138.
Companies that paid John Shields the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for John A. Shields'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 John A. Shields
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John A. Shields' NPI number?
John A. Shields' NPI number is 1558458661. It was assigned on October 9, 2006, and it is active in the NPI Registry.
What does John A. Shields specialize in?
John A. Shields is a nurse anesthetist in Nashville, Tennessee. The primary specialty in the NPI Registry is Certified Registered Nurse Anesthetist (taxonomy code 367500000X).
Where does John A. Shields practice?
John Shields practices at 1300 22nd S Ave, Nashville, TN 37212. John Shields' primary practice is Vanderbilt Medical Group in Nashville, Tennessee. Dmand AI also links John Shields to 1 group practice or clinic.
What is John A. Shields' office phone number?
The practice phone on file for John Shields is (615) 936-2000.
What is John A. Shields' medical license number?
John Shields holds Tennessee license APN9198.
Which hospitals is John A. Shields affiliated with?
John Shields is affiliated with Vanderbilt University Medical Center.
What medical group is John A. Shields part of?
John Shields is linked to Vanderbilt University Medical Center.
Does John A. Shields accept Medicare?
Yes. CMS lists John Shields as accepting Medicare assignment.
How many Medicare patients does John A. Shields see?
CMS counts 39 Medicare patients who saw John Shields in 2024, with an average age of 73.
Has John A. Shields received payments from drug or device companies?
CMS Open Payments shows $138 in general payments to John Shields from 1 company from 2025 to 2025. The largest total came from Fisher & Paykel Healthcare Inc.
How long has John A. Shields been practicing?
John Shields graduated from medical school in 1985, 41 years ago.
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