Dr. William Zimmerman, MD
What this data tells you about Dr. Zimmerman
Dr. William Zimmerman is an optician specialist in Framingham, MA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Zimmerman performed 4,345 Medicare services across 2,985 unique beneficiaries.
Between the years covered by Open Payments, Dr. Zimmerman received a total of $623 from 11 pharmaceutical and/or device companies across 29 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in optician. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Zimmerman is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
874 | $74 | $175 |
| Allergy skin test with airborne allergens A procedure where small amounts of airborne allergens are injected into the skin to check for allergic reactions. |
782 | $4 | $18 |
| Middle ear function test A diagnostic test used to evaluate how well the middle ear is functioning. |
350 | $13 | $60 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
345 | $93 | $225 |
| Ear wax removal A procedure to remove impacted ear wax from the ear canal. |
309 | $35 | $110 |
| Comprehensive hearing and speech recognition test A diagnostic evaluation that assesses hearing ability and the capacity to understand spoken words. The test measures how well a patient can detect sounds and recognize speech. |
298 | $28 | $100 |
| Flexible laryngoscopy A diagnostic exam of the voice box using a flexible endoscope to visualize the larynx. |
285 | $108 | $300 |
| Ear probe test for repeated sounds A probe is placed in the ear to measure how the ear responds to repeated sounds. The results are interpreted and a report is provided. |
246 | $27 | $150 |
| Nasal endoscopy A diagnostic procedure that uses a thin, lighted tube to examine the inside of the nasal passages. |
239 | $159 | $450 |
| Allergy immunotherapy preparation A professional service involving the preparation and administration of one or more antigens. |
196 | $13 | $28 |
| Impacted earwax removal by physician Removal of impacted earwax from one or both ears by a physician on the same day as audiologic testing. |
139 | $36 | $110 |
| Nasal and throat exam with endoscope A procedure to visually examine the nose and throat using a thin, flexible tube with a camera. This allows for direct visualization of the internal structures of the upper airway. |
85 | $101 | $325 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
65 | $106 | $215 |
| Hearing test using earphones and bone oscillator A hearing assessment that measures the ability to hear different sound pitches. The test uses earphones for air conduction and a device placed against the bone for bone conduction. |
55 | $36 | $100 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
24 | $137 | $350 |
| Complex removal of skin debris and drainage of mastoid cavity This procedure involves the intricate removal of accumulated skin debris and the drainage of fluid from the mastoid cavity. |
17 | $212 | $500 |
| Auditory brainstem response test A test that measures how the brain responds to sound to help diagnose nervous system disorders. The results are interpreted and reported by a medical professional. |
13 | $74 | $300 |
| Telephone medical discussion, 21-30 minutes A telephone conversation with a physician lasting between 21 and 30 minutes. This code covers the time spent discussing medical matters over the phone. |
12 | $104 | $200 |
| Balance testing with recording A procedure to evaluate balance function by recording the results during testing. |
11 | $95 | $250 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
2.6 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Zimmerman is a clinical cardiology specialist, with above-average Medicare volume (top 13% in MA), with low-engagement industry engagement, with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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