Skip to main content

Dr. James L. Baldwin, MD

Allergy & Immunology (Allergy & Immunology Physician)

  • Medicare participating

At a glance

Years since graduation
37
In the NPI registry since
2006
Medicare patients seen, 2024
121

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 1989Medical school: University of Connecticut School of Medicine
  • 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Allergy & Immunology Physician primary
    MI license 4301064624
  • Internal Medicine Physician
    MI license 4301064624

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Allergy & Immunology per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
121
Services billed
546
Patients’ average age
70
Most frequent Medicare services, 2023
ServiceTimesPatients
Established patient office or other outpatient visit, 30-39 minutes6958
New patient office or other outpatient visit, 45-59 minutes1818
Test to measure expiratory airflow and volume1413
Established patient office or other outpatient visit, 20-29 minutes1211

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Most prescribed drugs, Medicare Part D 2024
DrugPrescriptions
Montelukast Sodium
Other prescribers in Ann Arbor, MI
64
Mometasone Furoate
Other prescribers in Ann Arbor, MI
32
Dupixent Pen (dupilumab)
Other prescribers in Ann Arbor, MI
21
Pulmicort Flexhaler (budesonide)
Other prescribers in Ann Arbor, MI
17
Symbicort (budesonide/formoterol fumarate)
Other prescribers in Ann Arbor, MI
15
Fluticasone-Salmeterol (fluticasone propion/salmeterol)
Other prescribers in Ann Arbor, MI
14
Albuterol Sulfate Hfa (albuterol sulfate)
Other prescribers in Ann Arbor, MI
14
Haegarda (c1 esterase inhibitor)13
Cinryze (c1 esterase inhibitor)12
Breztri Aerosphere (budesonide/glycopyr/formoterol)
Other prescribers in Ann Arbor, MI
11

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Other Allergy & Immunology clinicians in Ann Arbor

Sources

NPI registry (CMS NPPES, November 2026; record last updated October 13, 2011), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1508955428. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.