Maria W. Castano, MD

Medicare activity in 2024

Official CMS public-use data for Maria W. Castano, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)138 services
2. Diagnostic exam of lower portion of large bowel using a flexible endoscope (45330)109 services
3. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)55 services
4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)40 services
5. Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)39 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol75%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
• Arthritis50%
• Ischemic heart disease39%
• Anxiety38%

Practice locations

Addresses where Maria W. Castano is enrolled with Medicare (CMS data updated October 2, 2026).

• 1101 Hempstead TpkeUniondale, NY 11553 (212) 639‑2000
• 1275 York AveNew York, NY 10065 (212) 639‑2000
• 2236 Nostrand AveBrooklyn, NY 11210 (212) 639‑2000
• 650 Commack RdCommack, NY 11725 (631) 623‑4034

Group practices

Medicare enrollment lists Maria W. Castano as a member of these groups (CMS data updated October 2, 2026).

• MSKCC Surgery Group369 clinicians in the group
• MSKCC Regional Network136 clinicians in the group
• MSK Nassau98 clinicians in the group
• Memorial Medical Care PC13 clinicians in the group

Specialties

• Colorectal Surgery (Proctology)primary
• General Surgeryalso

Find other Colorectal Surgery (Proctology) doctors in New York →

Other colorectal surgeons in New York

Clinicians with the same Medicare primary specialty in New York — not a recommendation.

• Mohammad Ali Abbass, MD
• Armand P. Asarian, MD
• Evan B. Buckingham, MD
• Steven M. Barone, MD
• Cesar E. Sanz, MD
• Daniel A. Popowich, MD
• Sandip R. Parikh, MD
• Heitham Wady, MD

All colorectal surgeons in New York →

Other clinicians in MSKCC Surgery Group

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Harry W. Herr, MD
• Nicole B. Costigan, PA
• Colleen R. Graham, NP
• Daniel Kowalsky Moskaliuk, OD
• Camilla Guerrero, PA
• Kamila Contento, OD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
4. Medicare Care Compare — official Medicare tool to look up clinicians