Lina Grymchan, PA

Medicare activity in 2024

Official CMS public-use data for Lina Grymchan, 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 moderate level of decision making, if using time, 30 minutes or more (99214)111 services
2. Ultrasound study of arm or leg veins with compression and maneuvers (93970)58 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)35 services
4. Ultrasound study of one arm or leg veins with compression and maneuvers (93971)32 services
5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)29 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 cholesterol75%
• High blood pressure69%
• Arthritis66%
• Ischemic heart disease44%
• Diabetes38%
• Depression35%

Hospitals where Lina Grymchan works

Medicare's Facility Affiliation Data lists Lina Grymchan 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.

• Cedars-Sinai Medical CenterLos Angeles, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050625

Practice locations

Addresses where Lina Grymchan is enrolled with Medicare (CMS data updated October 2, 2026).

• 1922 Hillhurst Ave, Suite 200Los Angeles, CA 90027 (424) 314‑5200
• 4910 Van Nuys BlvdSherman Oaks, CA 91403 (626) 449‑9922
• 8501 Wilshire Blvd, Suite 150Beverly Hills, CA 90211 (310) 385‑3334
• 8635 W 3rd St, Suite 465wLos Angeles, CA 90048 (310) 423‑0674

Group practices

Medicare enrollment lists Lina Grymchan as a member of these groups (CMS data updated October 2, 2026).

• Cedars-Sinai Medical Care Foundation1,692 clinicians in the group
• Practica Inc4 clinicians in the group

Specialties

• Physician Assistantprimary

Find other clinicians: Physician Assistant, California →

Other physician assistants in Los Angeles

Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.

• Michael T. Bontekoe, PA
• Karla Y. Rodriguez Vazquez, PA
• Mitra Kahen, PA
• Spencer K. McAndrews, PA
• Talia L. Pollack, PA
• Rachel Frankenthal, PA
• Linda Liu, PA
• Gary Notkin, PA

All physician assistants in Los Angeles →

Other clinicians in Cedars-Sinai Medical Care Foundation

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

• Tyson S. Rice, DO
• Jaime Moriguchi, MD
• Stephanie Chang, MD
• Taryn S. Bornstein, DO
• Christy L. Slingwine, MD
• Neelaysh Vukkadala, 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