DR. JOHN P. JR. WHEELER (MD) – Allergy & Immunology Physician, NPI 1790994390
Allergy & Immunology Physician
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NPPES metrics only — not quality of care.
47 ALLERGY/IMMUNOLOGY in IA
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Provider Addresses for DR. JOHN P. JR. WHEELER (MD)
McFarland Clinic, 1215, Duff Avenue, Ames, Story County, Iowa, 50019, United States
MCFARLAND CLINIC, PC
AMES, IA 500103014
Phone: (515) 239-4482
Fax: (515) 239-4732
Type: Location
800 WEST AVE S
LA CROSSE, WI 546018806
Phone: (608) 785-0940
Type: Location
Ames Post Office, 525, Kellogg Avenue, Downtown, Ames, Story County, Iowa, 50010, United States
1215 DUFF AVE MCFARLAND CLINIC, PC
AMES, IA 500103014
Phone: (515) 239-4400
Fax: (515) 239-4446
Type: Mailing
200 1ST ST SW
ROCHESTER, MN 559050001
Phone: (608) 785-0940
Fax: (515) 239-4446
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2021-05-07
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20210507000456 | I | Allergy/Immunology | WI | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 95004 | Test for allergy using allergenic extract | 246 | 13 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 84 | 66 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 73 | 65 | $0 |
| 95024 | Test for allergy using allergenic extract injected into skin | 69 | 11 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 57 | 57 | $0 |
Insurance plans in this area (ZIP 50010)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ALLERGY/IMMUNOLOGY | IA | 94060 | Measurement and graphic recording of the amount and speed of breathed air, before and following medication administration | 81 | 78 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | WI | |
| P S Y C H I A T R Y | WI | |
| Nurse Practitioner | WI | |
| Family Practice | WI | |
| Family Practice | WI | |
| - | WI | |
| - | MN | |
| - | MN | |
| U R O L O G Y | WI | |
| Physician Assistant | MN |
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