Doctor profile · Federal record

Dr. Fionna Feller, MD

Infectious Disease Physician (CMS: Infectious Disease) · Internal Medicine Physician · Student in an Organized Health Care Education/Training Program · Nashville, TN

  • NPI 1487142683
  • Accepts Medicare
  • MIPS 92.8 / 100 · 2023
  • 8 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
3601 the Vanderbilt Clinic
Nashville, TN 372323220
(615) 322-3000
Additional location
20 York St
New Haven, CT 065103220
(203) 688-4242
Mailing address
3841 Green Hills Village Dr Ste 200
Nashville, TN 372152691

Credentials & registration

NPPES · NUCC
NPI registered
April 2018 — 8 yrs on file
Profile last updated
July 31, 2023
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
207RI0200X — NUCC code
State licenses (2)
Tennessee #68266 · Arizona #R76674

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1487142683. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
133
Distinct HCPCS
4
Medicare allowed
$12,999
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 53 27 $63
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 32 14 $108
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 31 30 $117
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 17 17 $153

In context: peer comparison

Among 22 peers in Nashville Infectious Disease Physician, average services per provider: 89. This provider delivers 1.5× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Fionna Feller's medical specialty?
Dr. Fionna Feller practices Infectious Disease Physician in Nashville, TN.
Where does Dr. Fionna Feller practice?
Dr. Fionna Feller practices at 3601 the Vanderbilt Clinic, Nashville, TN 372323220. Office phone: 6153223000.
What is Dr. Fionna Feller's NPI?
Dr. Fionna Feller's National Provider Identifier (NPI) is 1487142683, issued by NPPES.
Does Dr. Fionna Feller accept Medicare assignment?
Yes. Dr. Fionna Feller accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Fionna Feller commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.