JOHN B HAGAN (M.D.) – Allergy & Immunology Physician, NPI 1366429573

JOHN B HAGAN (M.D.) is a healthcare provider. based in Rochester, Minnesota. specializing in ALLERGY/IMMUNOLOGY. They hold the professional credentials M.D.. They hold a License No. 33534 (MN). The NPI Number for JOHN B HAGAN (M.D.) is 1366429573

Main info

Male
37 Years Of Experience
Accepts Medicare Assignment
Name
JOHN B HAGAN (M.D.)
NPI
1366429573
Phone
(507) 284-2511
Address
200 1ST ST SW
Enumeration Date
29 December 2005
Last Update Date
14 August 2020

Doctor Profile

Medical School Name
UNIVERSITY OF TENNESSEE, HSC, COLLEGE OF MEDICINE
Secondary Phone
5072842511
Graduation Year
1989 (37 years ago)
PAC ID
6507901667
Group Practice PAC ID
6507778255
Professional Enrollment ID
I20100301000965
Address ID
MN559050001RO200XXSWXX400
Telehealth
Yes

Contacts

Secure Messaging
jhagan134564@ehrdirect.mayoclinicmsg.org
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience69
Completeness85
Years active:20State licenses:1Other namesUpdated within 12 months

91 ALLERGY/IMMUNOLOGY in MN

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Provider Addresses for JOHN B HAGAN (M.D.)

  • 1st Street Southwest, Rochester, Olmsted County, Minnesota, 55903, United States

    ROCHESTER, MN 559050001

    Phone: (507) 284-2511

    Mailing address matches the actual address.

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: 2010-03-01

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

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20100301000965IAllergy/ImmunologyMNTBD

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.

Verify on CMS Revalidation Lookup Tool

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

HCPCSDescriptionServicesBeneficiariesMedicare allowed
95004Test for allergy using allergenic extract2,00242$0
95018Test for allergy using combination of methods with drug or biological19926$0
99203New patient office or other outpatient visit, 30-44 minutes5151$0
99214Established patient office or other outpatient visit, 30-39 minutes4441$0
99205New patient office or other outpatient visit, 60-74 minutes2424$0
View full utilization report →

Insurance plans in this area (ZIP 55905)

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Provider's Procedures

JOHN B HAGAN (M.D.) performs procedures in ALLERGY/IMMUNOLOGY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
ALLERGY/IMMUNOLOGYMN94060Measurement and graphic recording of the amount and speed of breathed air, before and following medication administration5350

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 6507778255View full group profile

Reviews

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Frequently asked questions

Where can patients find JOHN B HAGAN (M.D.)'s NPI?
You can confirm JOHN B HAGAN (M.D.) with NPI 1366429573; it appears in the national provider directory.
Does this profile mean JOHN B HAGAN (M.D.) is currently active?
Yes — JOHN B HAGAN (M.D.) appears active in the national provider directory.
What field does JOHN B HAGAN (M.D.) work in?
You can think of JOHN B HAGAN (M.D.) as practicing within Allergy & Immunology Physician. Clinical services aligned with this taxonomy classification.
Where is JOHN B HAGAN (M.D.)'s primary listing?
We display Rochester, Minnesota because that is what the record indicates for JOHN B HAGAN (M.D.).
Is this NPI for an individual or an organization?
This listing corresponds to an Individual Provider.

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