Michael Brian Chang, MD

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at Unm Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1060 clinicians in the practice; 12 are shown here.

• John Adair Neurology Physician · Albuquerque, NM
• Dr. Betty Chang, MD Critical Care Medicine (Internal Medicine) Physician · Albuquerque, NM
• Michael Davis, MD Surgery Physician · Albuquerque, NM
• Sara Doorley, MD Internal Medicine Physician · Albuquerque, NM
• Jeffrey Dunn Psychiatry Physician · Albuquerque, NM
• Dr. John Russell Durkin, MD MOHS-Micrographic Surgery Physician · Albuquerque, NM
• Dr. Michal Gajewski, DO Anesthesiology Physician · Santa Fe, NM
• Amy C. Gundelach, RN, MSN, AG-CNS, OCN Oncology Clinical Nurse Specialist · Albuquerque, NM
• Neda Hashemi Sadraei, MD Student in an Organized Health Care Education/Training Program · Albuquerque, NM
• Sandeep Nair Clinical Cardiac Electrophysiology Physician · Albuquerque, NM
• Janet Veesart, MD Emergency Medicine Physician · Albuquerque, NM
• Dr. Nancy Elizabeth Waters, MD Infectious Disease Physician · Mission Hills, CA

Other providers in Albuquerque

• Emily Jeanne Bryl, PA

  Individual Dermatology Physician · NPI 1851743942

  5120 Masthead St NE, Albuquerque, NM 87109-4366 · (505) 243-7546

• Alicia Danielle Bucko, DO

  Individual Dermatology Physician · NPI 1528171881

  1203 Coal Ave SE, Albuquerque, NM 87106-5239 · (505) 247-4220

• Calyx Dermatology LLC

  Organization Dermatology Physician · NPI 1003657198

  612 Encino Pl NE, Albuquerque, NM 87102-2602 · (240) 367-2980

• Dr. John David Carey, MD

  Individual Dermatology Physician · NPI 1770578924

  12241 Academy Rd NE Ste 204, Albuquerque, NM 87111-8051 · (505) 938-4214

• William G Chapman, MD

  Individual Dermatology Physician · NPI 1235139569

  8316 Kaseman Ct NE, Albuquerque, NM 87110-7639 · (505) 292-5850

• Dr. Sky B Connolly, MD

  Individual Dermatology Physician · NPI 1194710442

  5310 Homestead Rd NE Ste 301, Albuquerque, NM 87110-1437 · (505) 872-4700

• Dr. David A. Davis, MD

  Individual Dermatology Physician · NPI 1124024880

  5120 Masthead St NE, Albuquerque, NM 87109-4366 · (505) 243-7546

• Dermatology & Skin Cancer Center of Nm PC

  Organization Dermatology Physician · NPI 1235264284

  5120 Masthead St NE, Albuquerque, NM 87109-4366 · (505) 243-7546