Physician Profile
Unclaimed ProfileAbout SHIELD
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Education & Training
Areas of Expertise
Common questions
What kind of doctor is Dr. Shield?
Dr. Shield is an internal medicine in Sonora, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
What is Dr. Shield's address?
Dr. Shield is listed at 690 GUZZI LN SUITE A, Sonora, CA 95370. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Shield?
The number on file is (209) 536-5070. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Shield's NPI number?
Dr. Shield's National Provider Identifier is 1033189634. 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. Shield train?
Dr. Shield attended Other, graduating in 1980. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Shield been practising?
Dr. Shield has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Shield perform?
According to Medicare billing data, Dr. Shield performs procedures including destruction of precancer skin growth, 1 growth; provides treatments such as test to examine how well the lungs exchange gases and test to measure expiratory airflow and volume changes before and after medication administration, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Shield confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Shield. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (209) 536-5070
- Email not available
Practice Locations
690 GUZZI LN SUITE A
Sonora, CA 95370
Procedures Most Often Billed to Medicare
4,061 services · 2,555 patients · 11 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
16 |
| Test to examine how well the lungs exchange gases | Treatment | 94729 |
387 |
| Test to measure expiratory airflow and volume changes before and after medication administration | Treatment | 94060 |
376 |
| Test to determine lung volumes using sensors | Treatment | 94726 |
375 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
78 |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
16 |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
1,220 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
1,036 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
456 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
73 |
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.
Other internal medicines at this location 7
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 — 28 related providers in 4 groups
Other internal medicines in Sonora 4
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1980 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Destruction of precancer skin growth, 1 growth 8
Providers in CA 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.