Physician Profile
Ingrid E. Trenkle, MD
Unclaimed ProfileAbout Dr. Trenkle
Ingrid E. Trenkle, MD is a specialist practicing in Redlands, CA. Ingrid trained at Loma Linda University School of Medicine, graduating in 1973. According to Medicare claims data, Ingrid cared for 3,849 Medicare patients across 25,424 services. The services billed most often include aminolevulinic acid hcl for topical administration, 10% gel, 10 mg, destruction of precancer skin growth, 2-14 growths, and established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (909) 335-2018
- Email not available
Practice Locations
124 E OLIVE AVE
Redlands, CA 92373
Procedures Most Often Billed to Medicare
25,424 services · 3,849 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
2,517 | More often than most peers in Specialist |
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
768 | More often than most peers in Specialist |
| Destruction of skin growth, 1-14 growths | Procedure | 17110 |
671 | More than most peers in Specialist |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
205 | As often as other peers in Specialist |
| Destruction of precancer skin growth, 15 or more growths | Procedure | 17004 |
144 | More often than most peers in Specialist |
| Punch biopsy, first skin growth | Procedure | 11104 |
141 | More than most peers in Specialist |
| Injection into skin growth, 1-7 growths | Procedure | 11900 |
107 | More than most peers in Specialist |
| Destruction of skin growth, 15 or more growths | Procedure | 17111 |
90 | More often than most peers in Specialist |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks | Procedure | 17312 |
81 | As often as other peers in Specialist |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks | Procedure | 17311 |
70 | As often as other peers in Specialist |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other specialists in Redlands 7
Same specialty, same city.
Trained at Loma Linda University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1973 at Loma Linda University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Destruction of precancer skin growth, 2-14 growths 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Trenkle specialize in?
Dr. Trenkle is a specialist in Redlands, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dr. Trenkle located?
Dr. Trenkle is listed at 124 E Olive Ave, Redlands, CA 92373. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Trenkle's phone number?
The number on file is (909) 335-2018. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Trenkle's NPI number?
Dr. Trenkle's National Provider Identifier is 1629161260. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Trenkle go to medical school?
Dr. Trenkle attended Loma Linda University School of Medicine, graduating in 1973. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Trenkle been practicing?
Dr. Trenkle has 53 years experience. Calculated from a graduation year of 1973, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Trenkle do most often?
According to Medicare billing data, Dr. Trenkle performs procedures including destruction of precancer skin growth, 2-14 growths, destruction of precancer skin growth, 1 growth and destruction of skin growth, 1-14 growths; provides treatments such as application of light with debridement to destroy precancer skin growth, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Trenkle confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Trenkle. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.