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KAREN E CALLAHAN MD
NPI 1154371508
Psychiatry & Neurology - Child & Adolescent Psychiatry in Birmingham, AL

Active since May 10, 2006PECOS EnrolledAccepts Medicare Assignment
2200 LAKESHORE DRIVE, GRAYSON & ASSOCIATES PC SUITE 150, BIRMINGHAM, AL 35209(205) 871-6926(205) 871-7981 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Karen E Callahan Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KAREN E CALLAHAN MD (NPI 1154371508) is an individual child & adolescent psychiatry provider in Birmingham, Alabama, licensed in Alabama (00016038) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS and is a graduate of University Of Alabama School Of Medicine (1990).

NPPES Registry Identity

NPI1154371508
Entity TypeIndividualFemale
Primary Taxonomy2084P0804X
Provider Legal NameKAREN E CALLAHANCredential: MD
Location Address2200 LAKESHORE DRIVE, GRAYSON & ASSOCIATES PC SUITE 150Birmingham, AL 35209
Mailing Address2200 Lakeshore Drive, Grayson & Associates Pc Suite 150Birmingham, AL 35209 · (205) 871-6926 · Fax (205) 871-7981
Phone(205) 871-6926
Fax(205) 871-7981
Sole ProprietorNo
Medical School CMSUniversity Of Alabama School Of MedicineGraduated 1990
Enumeration DateMay 10, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1154371508 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · Child & Adolescent PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0804X
License✔ Licensed in AL · 00016038
Definition
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.
Also ListedPsychiatry & Neurology · PsychiatryTaxonomy 2084P0800X · License 00016038 (AL)
2200 LAKESHORE DRIVE, Birmingham, AL 35209
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter of Alabama, Ambetter of Tennessee and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Karen E Callahan Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3173565710
PECOS Enrollment IDI20050524001275
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Karen Callahan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Grayson And Associates PC
Same address
Psychiatry
2200 LAKESHORE DR STE 150
Birmingham, AL 35209
  • Reassigned Medicare billing, Alabama enrollment
  • 72 clinicians in this Medicare group
NPI 1194772442 (205) 871-6926
The Health Care Authority For Baptist Health
83 mi
Hematology & Oncology
4145 CARMICHAEL RD
Montgomery, AL 36106
  • Reassigned Medicare billing, Alabama enrollment
  • Medicare enrollment name: Health Care Authority For Baptist Health, An Affiliate Of Uabhs
  • 439 clinicians in this Medicare group
NPI 1972749398 (334) 273-7000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
193 services61 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
116 services43 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
34 services32 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
21 services18 patients

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ROBBIN GRAYSON LPC
Counselor (Professional)
2200 LAKESHORE DRIVE, STE 150, GRAYSON & ASSOCIATES PC
BIRMINGHAM, AL 35209
Jefferson County (205) 871-6926
ROBERT ERIC MASHBURN PSY D
Psychologist (Clinical)
2200 LAKESHORE DRIVE, SUITE 150
BIRMINGHAM, AL 35209
Jefferson County (205) 871-6926
CHRISTINE E AGEE PHD
Psychologist (Clinical)
2200 LAKESHORE DRIVE
BIRMINGHAM, AL 35209
Jefferson County (205) 871-6926
DR. CHARLES GAYLE PELHAM PHD
Psychologist (Clinical)
2200 LAKESHORE DRIVE, GRAYSON & ASSOCIATES PC SUITE 150
BIRMINGHAM, AL 35209
Jefferson County (205) 871-6926
DAVID ANTONE MARTIN LPC
Counselor (Professional)
2200 LAKESHORE DRIVE, SUITE 150
BIRMINGHAM, AL 35209
Jefferson County (205) 871-6926
MARGARET G BARCLAY MD
Psychiatry & Neurology (Psychiatry)
2200 LAKESHORE DRIVE, SUITE 150
BIRMINGHAM, AL 35209
Jefferson County (205) 871-6926
JORGE W CASTRO MD
Psychiatry & Neurology (Psychiatry)
2200 LAKESHORE DRIVE, GRAYSON & ASSOCIATES SUITE 150
BIRMINGHAM, AL 35209
Jefferson County (205) 871-6926
REINA W BRASHIER LPC LMFT
Marriage & Family Therapist
2200 LAKESHORE DRIVE, GRAYSON & ASSOCIATES PC SUITE 150
BIRMINGHAM, AL 35209
Jefferson County (205) 871-6926

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karen Callahan's NPI number?

The NPI number for Karen Callahan is 1154371508. It was assigned to this individual provider in the NPPES registry on May 10, 2006.

Where is Karen Callahan located?

Karen Callahan practices at 2200 Lakeshore Drive Grayson & Associates PC Suite 150, Birmingham, AL 35209. The listed phone number is (205) 871-6926.

What is Karen Callahan's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.

Is Karen Callahan enrolled in Medicare?

Yes. Karen Callahan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Karen Callahan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Callahan reassigns Medicare benefits to 2 organizations: Grayson And Associates PC (Birmingham, AL) and The Health Care Authority For Baptist Health (Montgomery, AL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Karen Callahan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Karen Callahan accept?

Health plans from Ambetter Health, Ambetter of Alabama, Ambetter of Tennessee, Blue Cross and Blue Shield of Alabama and Oscar Insurance Company and 1 other insurer list Karen Callahan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Karen Callahan was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.