Physician Profile
Unclaimed ProfileAbout OLDHAM
Gerald L Oldham, MD is a healthcare provider in Peoria, AZ specializing in internal medicine. Gerald trained at University of Arkansas College of Medicine, graduating in 1976. Medicare claims data shows Gerald provided 870 services to 757 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Oldham specialize in?
Dr. Oldham is an internal medicine in Peoria, AZ. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where is Dr. Oldham located?
Dr. Oldham is listed at 13640 N PLAZA DEL RIO BLVD STE 220, Peoria, AZ 85381. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Oldham's phone number?
The number on file is (623) 876-3850. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Oldham?
Dr. Oldham's National Provider Identifier is 1235176207. 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. Oldham go to medical school?
Dr. Oldham attended University of Arkansas College of Medicine, graduating in 1976. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Oldham have?
Dr. Oldham has 50 years experience. Calculated from a graduation year of 1976, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Oldham do most often?
According to Medicare billing data, Dr. Oldham provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and influenza vaccine split virus, preservative free, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Oldham's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Oldham. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (623) 876-3850
- Email not available
Practice Locations
13640 N PLAZA DEL RIO BLVD STE 220
Peoria, AZ 85381
Procedures Most Often Billed to Medicare
870 services · 757 patients · 9 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
36 |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
33 |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
22 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
272 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
247 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
179 |
| Administration of influenza virus vaccine | Billing code | G0008 |
33 |
| Transitional care management services for problem of high complexity | Office visit | 99496 |
26 |
| Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | Billing code | G0180 |
22 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internal medicines at this location 5
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 32 related providers in 4 groups
Other internal medicines in Peoria 8
Same specialty, same city.
Trained at University of Arkansas College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1976 at University of Arkansas College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 8
Providers in AZ who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.