Katherine Virginia Day, M.D.
Otolaryngology Physician · Bel Air, MD
Katherine Virginia Day, M.D. is an otolaryngology physician with a practice address in Bel Air, Maryland, and NPI 1598836801, issued on Nov 10, 2006. Check the license (Maryland D0058518, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Katherine Virginia Day
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- D0058518 MD
Self-reported in NPPES; status is on the state search - Practice location
- 520 Upper Chesapeake Dr, Bel Air, MD 21014
- Phone
- (410) 879-9100
- Enumerated
- Nov 10, 2006
- Record last updated
- Mar 25, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (410) 879-0227
- Medicaid ID
- 405062200 MD
- Medicare enrollment
- Enrolled (PECOS I20050901000411); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 257 in Maryland → Look up another NPI →
Also registered at 520 Upper Chesapeake Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Katherine Virginia Day in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0058518Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.4 times the Medicare Part D claims of the average otolaryngology physician in 2024
1,829 Medicare Part D claims for 611 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D.
Most prescribed
- Fluticasone Propionate314 claims
- Montelukast Sodium296 claims
- Ipratropium Bromide105 claims
- Prednisone79 claims
- Omeprazole77 claims
- Famotidine58 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $307.65
10 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 6,429 providers of this specialty with any payment received $1,922.50 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Agape Physical Therapy And Sports Rehabilitation LPForest Hill, MD
- North Bay Ent And Audiology Group LLCBel Air, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Virginia Day among 257 otolaryngology physician records in Maryland
Katherine Virginia Day, M.D. is one of 257 otolaryngology physician records with a practice address in Maryland. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 48% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2002 · median 2004 among the 166 with a school on file
- Record last updated2015 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Maryland
There are 257 otolaryngology physician records in Maryland.
All 257 in Maryland → Every provider in Bel Air → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Philander Briscoe, M.D.Bel Air, MD 210141114098332
- Clarence Gehris, M.D.Bel Air, MD 210141033280334
- David Hoyt, MDBel Air, MD 210141548256423
- Carla Lawson, M.D.Bel Air, MD 210141477624682
- Leonard Proctor, M.D.Bel Air, MD 210141104982651
- Michael Rodrigues, MDBel Air, MD 210141043304348
- Scott Burgess, SCOTT BURGESSArnold, MD 210121811270127
- Robert Henderson, M.D., F.A.C.S.Columbia, MD 210441942277439
Common questions
What is Katherine Virginia Day, M.D.'s NPI number?
Katherine Virginia Day, M.D.'s National Provider Identifier (NPI) is 1598836801, issued on Nov 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Virginia Day, M.D. located?
The NPPES record lists a practice address at 520 Upper Chesapeake Dr, Bel Air, MD, 21014. Phone: (410) 879-9100. Providers update this record themselves, so call before visiting.
How can I verify Katherine Virginia Day, M.D.'s license?
NPPES lists Maryland license number D0058518, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine Virginia Day, M.D. prescribe under Medicare Part D?
In 2024, Katherine Virginia Day, M.D. had 1,829 Medicare Part D claims for 611 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is Katherine Virginia Day, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.