Physician Profile
Based in Lancaster, PA, Mary Theresa A. Lewis, M.D. is listed in the NPI registry under otolaryngology. Mary Theresa graduated from Uniformed Services Uhs Fe Hebert School of Med in 2007. Mary Theresa is also listed as specializing in otolaryngology (ent). According to Medicare claims data, the services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. NPI 1023215969 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
2104 HARRISBURG PIKE STE 200
Lancaster, PA 17601
Within Otolaryngology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Balance
Ear and hearing
Head, neck, and salivary
Nose and sinus
Sleep and airway
Throat and voice
Cancer
Head & Neck
Throat & Voice
Most searched procedures
Office diagnosis
Cosmetic
Ear & Hearing
Ear procedures
Head & Neck
Head and neck surgery
Nose & Sinus
Nose and sinus procedures
Sleep and airway
Throat & Voice
Throat, voice, and swallowing
18 services · 15 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
18 | Less often than most peers in Otolaryngology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Mary Theresa A. Lewis is an ENT doctor in Lancaster, PA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Otolaryngology”.
NPI registry
Mary Theresa A. Lewis is listed at 2104 Harrisburg Pike Ste 200, Lancaster, PA 17601. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (717) 544-3626. Contact the office directly to confirm availability and scheduling.
NPI registry
Mary Theresa A. Lewis's National Provider Identifier is 1023215969. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Mary Theresa A. Lewis attended Uniformed Services Uhs Fe Hebert School of Med, graduating in 2007. This comes from the CMS National Downloadable File.
CMS public data
Mary Theresa A. Lewis has 19 years experience. Calculated from a graduation year of 2007, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Mary Theresa A. Lewis the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Mary Theresa A. Lewis. If this is you, claiming it is free.
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