Patricia G. Johnson, MD

Medicare activity in 2024

Official CMS public-use data for Patricia G. Johnson, 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. Diagnostic exam of nasal passages using an endoscope (31231)69 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)41 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)28 services
4. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)13 services
5. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)12 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 cholesterol74%
• Arthritis57%
• Ischemic heart disease43%
• COPD35%
• Anxiety32%

Hospitals where Patricia G. Johnson works

Medicare's Facility Affiliation Data lists Patricia G. Johnson at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Westchester Medical CenterValhalla, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330234

Practice locations

Addresses where Patricia G. Johnson is enrolled with Medicare (CMS data updated October 2, 2026).

• 100 Woods RdValhalla, NY 10595
• 19 Bradhurst AveHawthorne, NY 10532
• 95 Grasslands RdValhalla, NY 10595 (914) 493‑6940

Group practices

Medicare enrollment lists Patricia G. Johnson as a member of this group (CMS data updated October 2, 2026).

• Westchester Medical Center Advanced Physician Services PC897 clinicians in the group

Specialties

• Otolaryngologyprimary

Find other Otolaryngology doctors in New York →

Other ENT doctors in Valhalla

Clinicians with the same Medicare primary specialty in Valhalla, NY — not a recommendation.

• Lianne M. Deserres, MD
• David M. Garber, MD
• Mike Yao, MD
• Habibullah Jamal, MD
• David M. Merer, MD
• Steven A. Hemmerdinger, MD
• Ashleigh Halderman, MD
• Katrina R. Stidham, MD

All ENT doctors in Valhalla →

Other clinicians in Westchester Medical Center Advanced Physician Services PC

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

• Tara R. Lent, PA
• Seigo Nishida, MD
• Alyson S. Helmandollar, MD
• Sandra R. Heller, CNM
• Sasha Gaer
• Charles W. Whitlock, MD

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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians