Gary Aron, M.D.
NPI 1619984911 · Internal Medicine Physician · Redwood City, CA
Gary Aron, M.D. is a Internal Medicine Physician provider in Redwood City, CA (NPI 1619984911).
Provider details
- NPI number
- 1619984911
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G036108 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
496 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 177 | $160 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 173 | $113 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 103 | $165 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 17 | $25 |
| Admn Sarscov2 Vacc 1 Dose90480 | 14 | $52 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 12 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 70 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 309 | 117 |
| Amlodipine Besylate | 237 | 83 |
| Losartan Potassium | 157 | 48 |
| Metformin Hcl | 103 | 36 |
| Lisinopril | 76 | 29 |
| Hydrochlorothiazide | 74 | 27 |
| Simvastatin | 72 | 29 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gary Aron's NPI number?
- Gary Aron's National Provider Identifier (NPI) is 1619984911, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Aron's specialty?
- Gary Aron is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Aron located?
- Gary Aron's practice location on file with NPPES is 2900 Whipple Ave, Redwood City, CA 94062-2843.
- What is Gary Aron's phone number?
- The practice phone number listed in the NPPES registry for Gary Aron is (650) 298-8774.
- Is Gary Aron's NPI active?
- Yes — Gary Aron's NPI (1619984911) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.