2026 NPPES data Otolaryngology Physician NPI 1891707857 M.D.
Verify on CMS →

Spencer Gilleon, M.D.

Otolaryngology Physician in Tallahassee, Florida.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,895 in Otolaryngology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
574
Medicare Part D claims · 215 beneficiaries · Otolaryngology Physician avg: 509
MIPS score
100/100
▲ 17 pts above national avg 83.1 · Exceptional
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Spencer Gilleon, M.D. reported a CMS MIPS final score of 100/100 - above the 83.1 national average - and filed 574 Medicare Part D claims in 2023.

100/100
MIPS score · +17 vs avg
574
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

Spencer Gilleon, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

100 Top 7% higher than 93% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90+: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Spencer Gilleon, M.D. sits

This provider among otolaryngology physician peers

Across the 3,669 otolaryngology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Spencer Gilleon, M.D. writes more Part D claims than 59% of them and scores higher on MIPS quality than 95% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.949.974.899.8Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 42Spencer Gilleon, M.D.-Part D claim volume, percentile in specialty: 59 · MIPS quality, percentile: 95
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one otolaryngology physician peer from a representative sample of 60; the gold marker is Spencer Gilleon, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Spencer Gilleon, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Spencer Gilleon, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 08/11/2006

NPI 1891707857

Primary specialty

Otolaryngology Physician

Mid-sized

10,895 US NPIs in this specialty

Medicare Part D claims

574 13% vs specialty avg

2023 prescription claims

Specialty avg: 509

MIPS final score

100/100 16.9 pts vs avg

Exceptional band

vs 83.1 national avg

Specialty distribution in Florida

How Otolaryngology Physician compares to other specialties among Florida providers

Florida providers
Behavior Technician - 16.1%Behavior Technician16.1%Mental Health Counselor - 4.8%Mental Health Counselor4.8%Family Nurse Practitioner - 4.5%Family Nurse Practitioner4.5%Pharmacist - 4.2%Pharmacist4.2%Student in an Organized Health Care Education/Training Program - 3.8%Student in an Organized Health Care Education/Training Program3.8%Physical Therapist - 3.1%Physical Therapist3.1%Otolaryngology Physician - 0.1%Otolaryngology Physician0.1%
Largest specialties in Florida (% of in-state providers)

Medicare quality performance, MIPS

Spencer Gilleon, M.D.'s 2023 MIPS final score plotted against the Otolaryngology Physician national average

High performer (top quartile)
MIPS Final Score
100/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Otolaryngology Physician) - 100/100 vs national avg 83.1

0%100%National avg83%99%
MIPS final score (Otolaryngology Physician) - 100/100 vs national avg 83.1
How MIPS and board certification work

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Spencer Gilleon, M.D. appears in the CMS NPPES registry as a Otolaryngology Physician provider holding M.D. credentials at 1405 CENTERVILLE RD, Tallahassee, FL, 32308, with a listed phone of (850) 877-0101. NPI 1891707857 was issued on 08/11/2006.

Medicare Part D records for calendar year 2023 show 574 prescription claims written by this provider, covering 215 Medicare beneficiaries and totaling roughly $17K in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 100/100 for the 2023 performance year (Quality 100), compared with the national average of 83.1.

Otolaryngology Physician is a mid-sized specialty nationwide, with 10,895 enrolled providers across 54 states and an average of 509 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.

Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1405 CENTERVILLE RD
Tallahassee, FL 32308

Provider Details

NPI 1891707857
Specialty Otolaryngology Physician
Credentials M.D.
Gender Male
NPI Issued 08/11/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

100
Final Score
Avg: 83.1
100
Quality

Reporting: Group practice

Hospital and facility affiliations

Facilities where Spencer Gilleon, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

Tallahassee Ear, Nose And Throat-Head And Neck Surgery, P.A.
Tallahassee, FL

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context - Florida FLDOH 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~75K Florida medical licensees in 2023 - they are NOT specific to Spencer Gilleon, M.D.. To verify Spencer Gilleon, M.D.'s current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases

FLDOH publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

574
Total Claims
$17K
Total Drug Cost
215
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
775
Total Day Supply
19,204
Generic Drug Cost
$16K
Antibiotic Claims
56

Patient Demographics

Average Patient Age
71.9 years
Avg HCC Risk Score
1.11
Gender Split
59% female / 41% male
Age Distribution
<65: 24, 65-74: 104, 75-84: 72, 85+: 15

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Spencer Gilleon, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Azelastine Hcl
160
Pantoprazole Sodium
121
Ipratropium Bromide
38
Fluocinolone Acetonide Oil
31
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
29
Ofloxacin
27
Fluticasone Propionate
22
Prednisone
22

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Otolaryngology Physician Overview

How Spencer Gilleon, M.D. fits within the Otolaryngology Physician landscape nationally.

10,895
Otolaryngology Physician Providers in US
54
States with Otolaryngology Physician
509
Avg Claims per Provider

Spencer Gilleon, M.D.'s 574 claims are above the specialty average of 509.

Nearby Otolaryngology Physician Providers in Florida

Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as Gilleon.

Compare Otolaryngology Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Florida medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Otolaryngology Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Spencer Gilleon, M.D.'s specialty?
Spencer Gilleon, M.D. specializes in Otolaryngology Physician and practices in Tallahassee, Florida. Credentials: M.D..
How much does Spencer Gilleon, M.D. prescribe under Medicare Part D?
In 2023, Spencer Gilleon, M.D. wrote 574 Medicare Part D claims totaling $17K in drug costs for 215 beneficiaries.
What is Spencer Gilleon, M.D.'s Medicare quality score?
Spencer Gilleon, M.D. has a CMS MIPS Final Score of 100/100 (Quality: 100). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Spencer Gilleon, M.D. located?
Spencer Gilleon, M.D. is located at 1405 CENTERVILLE RD, Tallahassee, FL, 32308. Phone: (850) 877-0101.
What is Spencer Gilleon, M.D.'s NPI number?
Spencer Gilleon, M.D.'s National Provider Identifier (NPI) is 1891707857, issued on 08/11/2006.
How many Otolaryngology Physician providers are there in the US?
There are 10,895 Otolaryngology Physician providers across 54 states in the US. The average Otolaryngology Physician provider writes 509 Medicare Part D claims per year.
What drugs does Spencer Gilleon, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Spencer Gilleon, M.D.'s most frequently prescribed drugs include Azelastine Hcl, Pantoprazole Sodium, Ipratropium Bromide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Spencer Gilleon, M.D. accept Medicare?
Spencer Gilleon, M.D. appears in CMS Medicare data with 574 Part D claims and 215 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Spencer Gilleon, M.D.'s credentials?
Spencer Gilleon, M.D.'s NPI is 1891707857 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

View source datasets and methodology notes
Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the PlainDoctor editorial team.