Physician Profile
Unclaimed ProfileAbout STREFF
Gregory J Streff, DO is a healthcare provider in Grand Blanc, MI specialising in pulmonary disease. Gregory trained at Des Moines University of Osteopathic Medicine and Health Sciences, graduating in 1983.
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 kind of doctor is Dr. Streff?
Dr. Streff is a pulmonary disease in Grand Blanc, MI. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PULMONARY DISEASE”.
NPI registry
What is Dr. Streff's address?
Dr. Streff is listed at 9450 S SAGINAW RD SUITE E, Grand Blanc, MI 48439. 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. Streff?
The number on file is (810) 695-4000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Streff?
Dr. Streff's National Provider Identifier is 1558314005. 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. Streff train?
Dr. Streff attended Des Moines University of Osteopathic Medicine and Health Sciences, graduating in 1983. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Streff have?
Dr. Streff has 43 years experience. Calculated from a graduation year of 1983, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Streff perform?
According to Medicare billing data, Dr. Streff 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
Is Dr. Streff's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Streff. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (810) 695-4000
- Email not available
Practice Locations
9450 S SAGINAW RD SUITE E
Grand Blanc, MI 48439
Procedures Most Often Billed to Medicare
1,638 services · 1,263 patients · 12 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Test to examine how well the lungs exchange gases | Treatment | 94729 |
186 |
| Test to measure expiratory airflow and volume changes before and after medication administration | Treatment | 94060 |
183 |
| Test to determine lung volumes using sensors | Treatment | 94726 |
141 |
| Sleep study including heart rate, breathing, and sleep time | Treatment | 95800 |
44 |
| Test to determine lung volumes using gas dilution or washout | Treatment | 94727 |
43 |
| Test for exercise-induced lung stress | Treatment | 94618 |
27 |
| Sleep study in sleep lab with continuous airway pressure (6 years or older) | Treatment | 95811 |
15 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
752 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
103 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
67 |
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 pulmonary diseases in Grand Blanc 5
Same specialty, same city.
Trained at Des Moines University of Osteopathic Medicine and Health Sciences 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 1983 at Des Moines University of Osteopathic Medicine and Health Sciences 8
Providers who graduated from the same medical school in the same year.
Also performs Test to examine how well the lungs exchange gases 7
Providers in MI 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.