Physician Profile
Based in Waterville, ME, William R. Chasse, MD is listed in the NPI registry under otolaryngology (ent). William graduated from Perelman School of Med at the University of Pennsylvania in 1979. According to Medicare claims data, William cared for 194 Medicare patients across 250 services. The services billed most often include established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and removal of impacted ear wax.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Source: NPPES NPI Registry
325 B KENNEDY MEMORIAL DRIVE
Waterville, ME 04901
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
250 services · 194 patients · 6 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of impacted ear wax | Procedure | 69210 |
33 |
| Diagnostic exam of voice box using a flexible endoscope | Procedure | 31575 |
32 |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
81 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
51 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
28 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
25 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Chasse is an otolaryngology (ent) in Waterville, ME. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dr. Chasse is listed at 325 B Kennedy Memorial Drive, Waterville, ME 04901. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (207) 873-0737. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Chasse's National Provider Identifier is 1811094220. 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
Dr. Chasse attended Perelman School of Med at the University of Pennsylvania, graduating in 1979. This comes from the CMS National Downloadable File.
CMS public data
Dr. Chasse has 47 years experience. Calculated from a graduation year of 1979, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Chasse performs procedures including removal of impacted ear wax and diagnostic exam of voice box using a flexible endoscope, alongside routine visits and testing. 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 Dr. Chasse. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.