Physician Profile
Unclaimed ProfileAbout HADLEY
John Hadley, M.D. practises pulmonary disease in Concord, CA. John is a 1978 graduate of Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University.
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. Hadley?
Dr. Hadley is a pulmonary disease in Concord, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PULMONARY DISEASE”.
NPI registry
What is Dr. Hadley's address?
Dr. Hadley is listed at 2299 BACON ST SUITE 2, Concord, CA 94520. 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. Hadley?
The number on file is (925) 676-2942. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Hadley?
Dr. Hadley's National Provider Identifier is 1750392437. 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. Hadley train?
Dr. Hadley attended Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University, graduating in 1978. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Hadley have?
Dr. Hadley has 48 years experience. Calculated from a graduation year of 1978, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Hadley perform?
According to Medicare billing data, Dr. Hadley provides treatments such as test to examine how well the lungs exchange gases and test to determine lung volumes using sensors, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Hadley's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Hadley. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (925) 676-2942
- Email not available
Practice Locations
2299 BACON ST SUITE 2
Concord, CA 94520
Procedures Most Often Billed to Medicare
519 services · 363 patients · 7 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Test to examine how well the lungs exchange gases | Treatment | 94729 |
24 |
| Test to determine lung volumes using sensors | Treatment | 94726 |
24 |
| Test to measure expiratory airflow and volume changes before and after medication administration | Treatment | 94060 |
24 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
228 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
157 |
| 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 |
44 |
| Telephone medical discussion with physician, 21-30 minutes | Office visit | 99443 |
18 |
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 pulmonary diseases at this location 3
Same specialty, same street address — most likely the same department or group.
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 — 24 related providers in 3 groups
Trained at Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University 8
Other providers in the same specialty who trained at the same institution.
Class of 1978 at Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University 8
Providers who graduated from the same medical school in the same year.
Also performs Test to examine how well the lungs exchange gases 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.