Allison Liefeld Fillar, M.D.
Sports Medicine (Orthopaedic Surgery) Physician · Baltimore, MD
Allison Liefeld Fillar, M.D. is a sports medicine (orthopaedic surgery) physician with a practice address in Baltimore, Maryland, and NPI 1285930404, issued on Feb 5, 2011. Check the license (Maryland FF4418922, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Allison Liefeld Fillar
- Credential
- M.D.
- Primary taxonomy
- Sports Medicine (Orthopaedic Surgery) Physician 207XX0005X
- License number
- FF4418922 MD
Self-reported in NPPES; status is on the state search - Practice location
- 3333 N Calvert St, Baltimore, MD 21218
- Phone
- (410) 554-2865
- Enumerated
- Feb 5, 2011
- Record last updated
- Aug 4, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150826000460); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest sports medicine (orthopaedic surgery) physician records → All 67 in Maryland → Look up another NPI →
Also registered at 3333 N Calvert St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- William Arnold, P.A.-CPhysician Assistant1255351359
- Nancie Arsham, OTR LOccupational Therapist1316991300
- Raja Ayash, M.D.Pulmonary Disease Physician1285603498
- Nacime Salomao Barbachan Mansur, MD, PHDOrthopaedic Foot and Ankle Surgery Physician1417679192
- William Baugher, M.D.Orthopaedic Surgery Physician1689637522
- Abhijit Bhatia, MDGastroenterology Physician1144338658
Verify Allison Liefeld Fillar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license FF4418922Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% fewer Medicare Part D claims than the average sports medicine (orthopaedic surgery) physician in 2024
286 Medicare Part D claims for 113 beneficiaries, against an average of 288 among the 2,562 providers of this specialty who prescribed in Part D. 61 claims were for opioids.
Most prescribed
- Meloxicam85 claims
- Amoxicillin26 claims
- Celecoxib25 claims
- Oxycodone Hcl25 claims
- Tramadol Hcl24 claims
- Ibuprofen18 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 80.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $303.20
3 payments; by number, the most common kind was food and beverage; the largest payer was Smith+Nephew, Inc. The 2,400 providers of this specialty with any payment received $19,779.31 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 4 group practices
- Agape Physical Therapy And Sports Rehabilitation LPForest Hill, MD
- Amber Hill Physical Therapy IncFrederick, MD
- Medstar Medical Group II LLCGlen Burnie, MD
- Suburban/nrh Medical Rehabilitation IncBethesda, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Allison Liefeld Fillar among 67 sports medicine (orthopaedic surgery) physician records in Maryland
Allison Liefeld Fillar, M.D. is one of 67 sports medicine (orthopaedic surgery) physician records with a practice address in Maryland. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 73% of them.
- NPI issued2011 · 73% of these records are older, 22% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated2009 · median 1998 among the 55 with a school on file
- Record last updated2015 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XX0005X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Sports Medicine (Orthopaedic Surgery) Physician providers in Maryland
There are 67 sports medicine (orthopaedic surgery) physician records in Maryland.
All 67 in Maryland → Every provider in Baltimore → Sports Medicine (Orthopaedic Surgery) Physician nationwide →
The 8 sports medicine (orthopaedic surgery) physician records with the nearest ZIP codes
- Jason Hammond, M.D.Baltimore, MD 212181033271697
- Scott Adams, MDCatonsville, MD 212281386851681
- Michael Wallace, M.D.Catonsville, MD 212281902005747
- Ralph Zade, M.D.Catonsville, MD 212281194082115
- James Dreese, M.D.Baltimore, MD 212071184687493
- Alvin Detterline, MDTowson, MD 212041316093180
- Mark Slabaugh, MDBaltimore, MD 212021285661561
- Natalie Leong, M.D.Baltimore, MD 212011114217411
Common questions
What is Allison Liefeld Fillar, M.D.'s NPI number?
Allison Liefeld Fillar, M.D.'s National Provider Identifier (NPI) is 1285930404, issued on Feb 5, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Allison Liefeld Fillar, M.D. located?
The NPPES record lists a practice address at 3333 N Calvert St, Baltimore, MD, 21218. Phone: (410) 554-2865. Providers update this record themselves, so call before visiting.
How can I verify Allison Liefeld Fillar, M.D.'s license?
NPPES lists Maryland license number FF4418922, 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 Allison Liefeld Fillar, M.D. prescribe under Medicare Part D?
In 2024, Allison Liefeld Fillar, M.D. had 286 Medicare Part D claims for 113 beneficiaries; the average among sports medicine (orthopaedic surgery) physician prescribers was 288. Part D covers Medicare prescriptions only.
What is Allison Liefeld Fillar, M.D.'s MIPS final score?
The 2023 MIPS final score is 80.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.