Dr. David M. Maahs, MD, PHD
Pediatric Endocrinology (Pediatric Endocrinology Physician)
300 Pasteur Dr
Stanford, CA 94305
Who else practices at this address →
Santa Clara County includes mental health (13% of residents) shortage areas. About shortage areas
At a glance
- In the NPI registry since
- 2006
Licensed in Colorado since 2006, according to the Colorado Department of Regulatory Agencies. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
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
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. 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
-
Pediatric Endocrinology Physician primary
CA license C145798 (first issued 2016; current) -
Pediatrics Physician
CO license 44711 (first issued 2006; expired)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Payments from drug and device companies
In 2025, 2 companies reported 14 payments worth $10,239 in total to this clinician.
| Medtronic, Inc. | $6,094 |
|---|---|
| Sanofi-aventis U.S. LLC | $4,145 |
| Consulting Fee | $8,956 |
|---|---|
| Travel and Lodging | $875 |
| Food and Beverage | $408 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Medtronic, Inc. Mar 13, 2025 | Consulting Fee | $5,040 |
| Sanofi-aventis U.S. LLC Oct 14, 2025 | Consulting Fee | $3,916 |
| Medtronic, Inc. Mar 25, 2025 | Travel and Lodging MINIMED 780G · Durable Pump · travel to Northridge, CA · in-kind | $295 |
| Medtronic, Inc. Jan 10, 2025 | Travel and Lodging MINIMED 780G · Durable Pump · travel to Northridge, CA · in-kind | $187 |
| Medtronic, Inc. Mar 4, 2025 | Travel and Lodging MINIMED 780G · Durable Pump · travel to Northridge, CA · in-kind | $112 |
| Sanofi-aventis U.S. LLC Oct 14, 2025 | Travel and Lodging travel to San Francisco, CA | $85.02 |
| Medtronic, Inc. Feb 27, 2025 | Travel and Lodging travel to Northridge, CA · in-kind | $72.98 |
| Medtronic, Inc. Feb 28, 2025 | Travel and Lodging MINIMED 780G · Durable Pump · travel to Los Angeles, CA · in-kind | $59.45 |
| Medtronic, Inc. Feb 26, 2025 | Travel and Lodging travel to Northridge, CA · in-kind | $58.79 |
| Medtronic, Inc. Jan 10, 2025 | Travel and Lodging MINIMED 780G · Durable Pump · travel to Northridge, CA · in-kind | $4.68 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.