Dr. John-Ryan Griffin McAnnally, MD

  • Chattanooga, TN
  • Emergency medicine physician
NPI1194082610PAC ID6103062617
Medicare services, 2024
322
Medicare patients, 2024
311
Part D claims, 2024
433
MIPS score, 2024
100
Hospital affiliations
1
Practice address
975 E 3rd St, Chattanooga, TN 37403
Practice phone
Call (423) 778-7000
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Erlanger Baroness Hospital

Hospital · Chattanooga, Tennessee

See all 4 affiliations

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Dr. John-Ryan Griffin McAnnally is an emergency medicine physician in Chattanooga, Tennessee

Dr. McAnnally practices at Erlanger Baroness Hospital in Chattanooga, Tennessee, part of Erlanger Health.

Dr. McAnnally's NPI, 1194082610, was assigned on April 22, 2012. Dr. McAnnally graduated from University of Alabama School of Medicine in 2012. Dr. McAnnally holds Tennessee license 52430.

NPI and contact details
Medicare PAC ID
6103062617
NPI enumeration date
April 22, 2012
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(423) 778-7000
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)

Dr. John-Ryan Griffin McAnnally practices at Erlanger Baroness Hospital in Chattanooga, Tennessee

Dr. McAnnally's primary practice is Erlanger Baroness Hospital, at 975 E 3rd St, Chattanooga, TN 37403 in Hamilton County. The practice phone is (423) 778-7000.

Source: Dmand AI Affiliation Data

Dr. John-Ryan Griffin McAnnally is affiliated with 3 sites of care and 1 medical group

Dr. McAnnally's primary practice is Erlanger Baroness Hospital in Chattanooga, Tennessee, part of Erlanger Health. The medical group on file is Tennessee River Physicians. Dmand AI also links Dr. McAnnally to 1 more community health center and 1 group practice or clinic, each named with a free account.

See all 4 affiliations for Dr. McAnnally

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

Dmand AI tracks the EHR system at Dr. John-Ryan Griffin McAnnally's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McAnnally practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Erlanger Baroness HospitalAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. John-Ryan Griffin McAnnally is one of 1,088 emergency medicine physicians in Tennessee

Emergency medicine is Dr. McAnnally's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. McAnnally is licensed in Tennessee.

Specialties and state licenses

  • Emergency medicine, TennesseePrimaryLicense 52430 · taxonomy 207P00000X

Emergency medicine physicians near Dr. McAnnally

Counts of emergency medicine physicians 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. John-Ryan Griffin McAnnally billed Medicare for 322 services in 2024

CMS data shows 322 Medicare services from Dr. McAnnally across 3 procedure codes in 2024, for 311 Medicare patients. Medicare paid $33,853 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024322
Medicare patients311
Paid by Medicare$33,853
Procedure codes3

Dr. McAnnally's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 4222024: 32224%

Dr. McAnnally compared with the Tennessee median for emergency medicine physicians, 2024

  • Dr. McAnnally
  • Tennessee median
Medicare services
322vs 26621% above
Medicare patients
311vs 25721% above
Part D claims
268vs 932.9 times

Medians across 1,079 emergency medicine physicians in Tennessee with Dmand AI profiles that report each measure.

Dr. McAnnally'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.

See all procedures by Dr. McAnnally

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. John-Ryan Griffin McAnnally treated 311 Medicare patients in 2024, average age 75

CMS counts 311 Medicare patients who saw Dr. McAnnally in 2024. The largest group is 65 to 74, with 104 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.83, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. McAnnally's median patient age at 46, with 62% women.

Medicare patients, 2024311
Average age75
Average risk score1.83
Also on Medicaid15%

Dr. McAnnally's Medicare patients by age, 2024

Dr. McAnnally's Medicare patients by sex, 2024

  • Women17857%
  • Men13343%

Chronic conditions among Dr. McAnnally's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis60%
  4. Diabetes43%
  5. Mood disorders42%
  6. Anxiety41%
  7. Depression38%
  8. Chronic kidney disease33%

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

Dr. McAnnally's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 46

Patient panel by sex, all payers

  • Women62%
  • Men38%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. John-Ryan Griffin McAnnally wrote 433 Medicare Part D claims in 2024

In 2024, Dr. McAnnally wrote 433 Medicare Part D claims for 267 patients. 95% of them were for generic drugs. CMS names the drug for 268 of them, across 10 drugs with 11 or more claims each, at $2,101 in total drug cost. In 2023, CMS named 303 claims across 11 drugs.

Part D claims, 2024433
Drugs named by CMS10
Total drug cost$2,101
Part D patients267

Dr. McAnnally's Part D claims by kind of drug, 2024

  • Generic410 claims95%
  • Brand-name and other23 claims5%

Dr. McAnnally'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 Dr. McAnnally's Part D claims, 2024

  • Opioids16%68 of 433 claims
  • Antibiotics30%128 of 433 claims

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

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 3032024: 26812%

Drugs named by CMS: 10 in 2024, 11 in 2023.

See all prescribing by Dr. McAnnally

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

Dr. John-Ryan Griffin McAnnally scored 100 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. McAnnally for performance year 2024, reported as part of a group. Dr. McAnnally accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. McAnnally's MIPS scores, performance year 2024

  • 100of 100Final score
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

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), 2024 data, released September 10, 2026

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Dr. John-Ryan Griffin McAnnally received $59 in industry payments from 2018 to 2023

CMS Open Payments shows 3 general payments to Dr. McAnnally from 2 drug and device companies from 2018 to 2023. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $39.

General payments to Dr. McAnnally by program year, 2018 to 2023

Companies that paid Dr. McAnnally the most, 2018 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. McAnnally

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. John-Ryan Griffin McAnnally graduated from University of Alabama School of Medicine

Dr. McAnnally graduated from University of Alabama School of Medicine in 2012.

  1. Medical schoolUniversity of Alabama School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. John-Ryan Griffin McAnnally'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 services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
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 and Drug (CMS) (opens in a new tab)Medicare 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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
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 Dr. John-Ryan Griffin McAnnally

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. John-Ryan Griffin McAnnally's NPI number?

Dr. John-Ryan Griffin McAnnally's NPI number is 1194082610. It was assigned on April 22, 2012, and it is active in the NPI Registry.

What kind of doctor is Dr. John-Ryan Griffin McAnnally?

Dr. John-Ryan Griffin McAnnally is an emergency medicine physician in Chattanooga, Tennessee. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. John-Ryan Griffin McAnnally practice?

Dr. McAnnally practices at 975 E 3rd St, Chattanooga, TN 37403. Dr. McAnnally's primary practice is Erlanger Baroness Hospital in Chattanooga, Tennessee, part of Erlanger Health. Dmand AI also links Dr. McAnnally to 1 community health center and 1 group practice or clinic.

What is Dr. John-Ryan Griffin McAnnally's office phone number?

The practice phone on file for Dr. McAnnally is (423) 778-7000.

What is Dr. John-Ryan Griffin McAnnally's medical license number?

Dr. McAnnally holds Tennessee license 52430.

Which hospitals is Dr. John-Ryan Griffin McAnnally affiliated with?

Dr. McAnnally practices at Erlanger Baroness Hospital in Chattanooga, Tennessee.

What medical group is Dr. John-Ryan Griffin McAnnally part of?

Dr. McAnnally is linked to Tennessee River Physicians.

Does Dr. John-Ryan Griffin McAnnally accept Medicare?

Yes. CMS data shows Dr. McAnnally billed Medicare for 322 services in 2024, and Dr. McAnnally accepts Medicare assignment.

What is Dr. John-Ryan Griffin McAnnally's MIPS score?

Dr. McAnnally's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.

How many Medicare patients does Dr. John-Ryan Griffin McAnnally see?

CMS counts 311 Medicare patients who saw Dr. McAnnally in 2024, with an average age of 75.

Show 5 more questionsShow fewer questions

What services does Dr. John-Ryan Griffin McAnnally bill to Medicare?

In 2024, Dr. McAnnally's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).

Where did Dr. John-Ryan Griffin McAnnally go to medical school?

Dr. McAnnally graduated from University of Alabama School of Medicine in 2012.

What drugs does Dr. John-Ryan Griffin McAnnally prescribe most?

In 2024 Medicare Part D data, Dr. McAnnally's most prescribed drugs by claims were Cefdinir, Oxycodone-Acetaminophen and Amoxicillin-Clavulanate Potass.

Has Dr. John-Ryan Griffin McAnnally received payments from drug or device companies?

CMS Open Payments shows $59 in general payments to Dr. McAnnally from 2 companies from 2018 to 2023. The largest total came from Janssen Pharmaceuticals, Inc.

How long has Dr. John-Ryan Griffin McAnnally been practicing?

Dr. McAnnally graduated from medical school in 2012, 14 years ago.

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