Physician Profile
Unclaimed ProfileAbout JOHLIN
Based in Iowa City, IA, Frederick C Johlin, MD is listed in the NPI registry under gastroenterology. Frederick graduated from Medical College of Ohio in 1980. Frederick is also listed as specialising in internal medicine.
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. Johlin specialise in?
Dr. Johlin is a gastroenterology in Iowa City, IA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
Where is Dr. Johlin located?
Dr. Johlin is listed at 200 HAWKINS DR, Iowa City, IA 52242. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Johlin's phone number?
The number on file is (319) 356-4901. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Johlin's NPI number?
Dr. Johlin's National Provider Identifier is 1821085960. 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. Johlin go to medical school?
Dr. Johlin attended Medical College of Ohio, graduating in 1980. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Johlin been practising?
Dr. Johlin has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Johlin do most often?
According to Medicare billing data, Dr. Johlin performs procedures including insertion of stent into pancreatic or bile duct using a flexible endoscope, removal of stone or debris from bile or pancreatic duct using a flexible endoscope and incision of pancreatic outlet using a flexible endoscope. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Johlin confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Johlin. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (319) 356-4901
- Email not available
Practice Locations
200 HAWKINS DR
Iowa City, IA 52242
Procedures Most Often Billed to Medicare
134 services · 96 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of stent into pancreatic or bile duct using a flexible endoscope | Procedure | 43274 |
26 |
| Removal of stone or debris from bile or pancreatic duct using a flexible endoscope | Procedure | 43264 |
26 |
| Incision of pancreatic outlet using a flexible endoscope | Procedure | 43262 |
11 |
| Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monit | Billing code | G0500 |
71 |
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 gastroenterology specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
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 — 29 related providers in 4 groups
Other gastroenterology specialists in Iowa City 7
Same specialty, same city.
Trained at Medical College of Ohio 8
Other providers in the same specialty who trained at the same institution.
Class of 1980 at Medical College of Ohio 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of stent into pancreatic or bile duct using a flexible endoscope 6
Providers in IA 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.