Dr. Alexander Nelken, M.D.
What this data tells you about Dr. Nelken
Dr. Alexander Nelken is an anesthesiology specialist in Brooklyn, NY, with 18 years of NPI registration. Based on federal Medicare data, Dr. Nelken performed 572 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Nelken received a total of $23 from 1 pharmaceutical and/or device company across 2 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Nelken 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 — 2023
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 |
|---|---|---|---|
| Anesthesia for cataract/lens surgery Administration of anesthesia during eye lens surgery. This code covers the anesthetic service provided for the procedure. |
186 | $89 | $2,524 |
| Anesthesia for large bowel endoscopy Administration of anesthesia during a procedure to examine the large bowel using an endoscope. |
126 | $108 | $3,554 |
| Anesthesia for colonoscopy Administration of anesthesia during an examination of the colon using an endoscope. |
93 | $141 | $4,264 |
| Anesthesia for endoscopic procedure on esophagus, stomach, or upper small bowel Administration of anesthesia during an endoscopic procedure involving the esophagus, stomach, or upper small bowel. |
71 | $121 | $4,205 |
| Anesthesia for bowel endoscopy Administration of anesthesia during a procedure to examine the small and large bowel using an endoscope. |
30 | $132 | $3,700 |
| Anesthesia for eyelid procedure Administration of anesthesia during a surgical procedure involving the eyelid. |
26 | $133 | $3,441 |
| Anesthesia for urinary system procedure via urethra Administration of anesthesia for a surgical procedure on the urinary system performed through the urethra. |
16 | $106 | $4,800 |
| Anesthesia for shock wave therapy for urinary stones Administration of anesthesia during shock wave lithotripsy to break up urinary system stones without the use of a water bath. |
13 | $168 | $6,400 |
| Anesthesia for other eye procedure Administration of anesthesia for surgical procedures on the eye that are not otherwise specified. |
11 | $141 | $4,103 |
Industry Payment Transparency
Open Payments through 2019 ↗Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2019)
Associated products mentioned in payments ›
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2019 |
| Disciplinary History | — Not included | 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. Nelken is a cardiac surgery specialist, with above-average Medicare volume (top 10% in NY), with 18 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Nelken experienced with anesthesia for cataract/lens surgery?
Does Dr. Nelken receive payments from pharmaceutical companies?
How do Dr. Nelken's costs compare to other anesthesiologists in Brooklyn?
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Is this data up to date?
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This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: 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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