Annie Z. Lin, MD

Medicare activity in 2024

Official CMS public-use data for Annie Z. Lin, 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)186 services
2. Insertion of needle into vein for collection of blood sample (36415)93 services
3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)83 services
4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)72 services
5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)32 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 pressure74%
• Arthritis37%
• Depression33%
• Chronic kidney disease32%
• Diabetes29%

Hospitals where Annie Z. Lin works

Medicare's Facility Affiliation Data lists Annie Z. Lin 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.

• The Johns Hopkins HospitalBaltimore, MD · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 210009

Practice locations

Addresses where Annie Z. Lin is enrolled with Medicare (CMS data updated October 2, 2026).

• 110 Baughmans Ln, Suite 140Frederick, MD 21702 (240) 215‑1138
• 301 Saint Paul St, Suite 409Baltimore, MD 21202 (410) 659‑7041
• 405 Frederick Rd, Suite 210Catonsville, MD 21228 (410) 788‑6565

Group practices

Medicare enrollment lists Annie Z. Lin as a member of this group (CMS data updated October 2, 2026).

• Privia Care Center LLC287 clinicians in the group

Specialties

• Internal Medicineprimary
• Pediatric Medicinealso

Find other Internal Medicine doctors in Maryland →

Other internal medicine doctors in Frederick

Clinicians with the same Medicare primary specialty in Frederick, MD — not a recommendation.

• Monique Y. Langston, DO
• Samuel Stoyak, MD
• Andrew O. Donelson, MD
• Paul R. Miller, MD
• Joseph Goldenberg, MD
• Preeti Bendala, MD
• Prashant R. Shukla, MD
• Benjamin Y. Lee, MD

All internal medicine doctors in Frederick →

Other clinicians in Privia Care Center LLC

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

• Charia L. Friend, NP
• Jaclyn Tozaki, NP
• Juby M. George, PA
• Daniel H. Gatazka, DO
• Monique Y. Langston, DO
• Emelda Tah, 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