DR. KAREN B BARKER (M.D.) – Allergy & Immunology Physician, NPI 1629268263
Allergy & Immunology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
58 ALLERGY/IMMUNOLOGY in AL
Provider Addresses for DR. KAREN B BARKER (M.D.)
PO BOX 7987
MOBILE, AL 366700987
Phone: (251) 633-0573
Fax: (251) 633-7367
Type: Mailing
8725 COUNTY ROAD 64
DAPHNE, AL 36526
Phone: (251) 625-1370
Fax: (251) 625-1380
Type: Location
5955 Airport Blvd
Mobile, AL 366083135
Phone: (251) 633-0573
Fax: (251) 633-7367
Type: Location
2001 Spring Hill Ave
Mobile, AL 366073326
Phone: (251) 433-3344
Fax: (251) 433-4052
Type: Location
100 Memorial Hospital Dr Ste 1A
Mobile, AL 366081128
Phone: (251) 343-6848
Fax: (251) 343-5708
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 297 Open Payments records for all available years, with a total value of $6,481.
Total Amount is formed as General ($6,481) + Research ($0) + Ownership ($0) = $6,481.
Last reported payment date: 2024-12-17 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($1,191).
Total Amount
$6,481
General + Research + Ownership
Payments
297
Total payment records
General Amount
$6,481
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-17
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2017-10-12
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 |
|---|---|---|---|---|
| I20171012003004 | I | Allergy/Immunology | AL | 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 |
|---|---|---|---|---|
| 95165 | Professional service for preparation and provision of 1 or more antigens | 2,359 | 21 | $0 |
| 95004 | Test for allergy using allergenic extract | 1,098 | 23 | $0 |
| 95117 | Professional service for multiple injections of allergen | 274 | 18 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 130 | 82 | $0 |
| 94375 | Test to measure rate of airflow | 98 | 63 | $0 |
Insurance plans in this area (ZIP 36670)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine, Pulmonary Disease | AL | |
| Nurse Practitioner | AL | |
| Nurse Practitioner | AL | |
| Pulmonary Disease, Internal Medicine | AL | |
| Nurse Practitioner | AL | |
| Sleep Medicine, Critical Care (Intensivists), Pulmonary Disease | AL | |
| Pulmonary Disease, Critical Care (Intensivists) | AL | |
| Nurse Practitioner | AL | |
| Pulmonary Disease, Critical Care (Intensivists) | AL | |
| Nurse Practitioner | AL |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.