KARIM AHMED IBRAHIM MAHMOUD M.D
NPI 1871908939
Internal Medicine in Murfreesboro, TN

Active since June 27, 2014PECOS EnrolledAccepts Medicare Assignment
1700 MEDICAL CENTER PKWY, MURFREESBORO, TN 37129(615) 396-4694(615) 396-6751 Get Directions Write a Review

NPPES record last updated: January 4, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 4, 2023, Aug 30, 2017 (2 updates tracked since 2017).

About Karim Ahmed Ibrahim Mahmoud M.d NPPES

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

KARIM AHMED IBRAHIM MAHMOUD M.D (NPI 1871908939) is an individual internal medicine provider in Murfreesboro, Tennessee, licensed in Tennessee (64209) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS, is affiliated with Chi Memorial Hospital- Georgia, and maintains a secondary practice location in Detroit.

NPPES Registry Identity

NPI1871908939
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameKARIM AHMED IBRAHIM MAHMOUDCredential: M.D
Location Address1700 MEDICAL CENTER PKWYMurfreesboro, TN 37129-2245
Mailing Address300 20th Ave N Ste 403Nashville, TN 37203-5180 · (615) 284-4088 · Fax (615) 284-7501
Fax(615) 396-6751
Sole ProprietorNo
Medical School CMSOtherGraduated 2010
Enumeration DateJune 27, 2014
Last NPPES UpdateJanuary 4, 20232 updates tracked since enumeration
NPPES CertifiedJanuary 4, 2023
✔ NPI 1871908939 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in TN · 64209✔ Licensed in GA · 77662
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 4301104879 (MI)
1700 MEDICAL CENTER PKWY, Murfreesboro, TN 37129

Secondary Practice Location 1

Location 14201 St.Antoine St, Suite 2EDetroit, MI 48201-2153 · Phone (313) 745-4832

Accepted 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

Karim Ahmed Ibrahim Mahmoud M.d 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 ID3779885876
PECOS Enrollment IDI20211014000821
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

8

Medicare enrollment records show Karim Mahmoud reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Hospitalist
1700 MEDICAL CENTER PKWY
Murfreesboro, TN 37129
  • Reassigned Medicare billing, Tennessee enrollment
  • 116 clinicians in this Medicare group
Gynecology
4601 CAROTHERS PARKWAY, STE. 350
Franklin, TN 37067
  • Reassigned Medicare billing, Tennessee enrollment
  • 1,304 clinicians in this Medicare group
Primary Care
3326 ASPEN GROVE DR STE 502
Franklin, TN 37067
  • Reassigned Medicare billing, Tennessee enrollment
  • 2 clinicians in this Medicare group
Hospitalist
4220 HARDING PIKE
Nashville, TN 37205
  • Reassigned Medicare billing, Tennessee enrollment
  • 97 clinicians in this Medicare group
Hospitalist
1 MEDICAL CENTER BLVD
Cookeville, TN 38501
  • Reassigned Medicare billing, Tennessee enrollment
  • 107 clinicians in this Medicare group
Internal Medicine
5600 BRAINERD RD, SUITE 500
Chattanooga, TN 37411
  • Reassigned Medicare billing, Georgia and Tennessee enrollments
  • 242 clinicians in this Medicare group
Hospitalist
304 TURNER MCCALL BLVD SW
Rome, GA 30165
  • Reassigned Medicare billing, Georgia enrollment
  • 343 clinicians in this Medicare group
Hospitalist
1601 WATSON BLVD
Warner Robins, GA 31093
  • Reassigned Medicare billing, Georgia enrollment
  • 150 clinicians in this Medicare group

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 3

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.

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.
362 services359 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
63 services63 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
14 services14 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Chi Memorial Hospital- Georgia

Acute Care Hospitals · Fort Oglethorpe, GA
OwnershipVoluntary non-profit - Private
CMS Certification Number110236
Location100 Gross Crescent CircleFort Oglethorpe, GA 30742 · Catoosa County
Emergency services

Unity Medical Center

Acute Care Hospitals · Manchester, TN
OwnershipVoluntary non-profit - Private
CMS Certification Number440007
Location481 Interstate DriveManchester, TN 37355 · Coffee County
Emergency services

Saint Thomas Rutherford Hospital

Acute Care Hospitals · Murfreesboro, TN
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number440053
Location1700 Medical Center ParkwayMurfreesboro, TN 37129 · Rutherford County
Emergency services Birthing friendly

Southern Tennessee Regional Hlth System Winchester

Acute Care Hospitals · Winchester, TN
2/5 CMS rating
OwnershipProprietary
CMS Certification Number440058
Location185 Hospital RoadWinchester, TN 37398 · Franklin County
Emergency services Birthing friendly

Memorial Healthcare System, Inc

Acute Care Hospitals · Chattanooga, TN
5/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number440091
Location2525 Desales AveChattanooga, TN 37404 · Hamilton County

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37129 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$121.80 typical visit price
range $52.64 – $160.89
Typical copayment $30.45 (range $13.16 – $40.22)
Most-billed visit code 99204
Established Patient
$93.60 typical visit price
range $16.72 – $131.41
Typical copayment $23.40 (range $4.18 – $32.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
100%423 patients5/55-star benchmark: 100%
Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
99%397 patients4/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers16 claims16 services$17.06 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
4 suppliers35 claims35 services$105.78 avg. paid by Medicare
Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738
DME-Oxygen and Supplies · category DC000N
2 suppliers17 claims17 services$38.23 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

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

Internal Medicine
1700 MEDICAL CENTER PKWY
MURFREESBORO, TN 37129
Obstetrics & Gynecology
1700 MEDICAL CENTER PKWY
MURFREESBORO, TN 37129
Pathology (Anatomic Pathology)
1700 MEDICAL CENTER PKWY
MURFREESBORO, TN 37129
Pharmacist
1700 MEDICAL CENTER PKWY
MURFREESBORO, TN 37129
Physician Assistant
1700 MEDICAL CENTER PKWY
MURFREESBORO, TN 37129
Family Medicine
1700 MEDICAL CENTER PKWY
MURFREESBORO, TN 37129
Emergency Medicine
1700 MEDICAL CENTER PKWY
MURFREESBORO, TN 37129
Registered Nurse (Emergency)
1700 MEDICAL CENTER PKWY
MURFREESBORO, TN 37129

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 Karim Mahmoud's NPI number?

The NPI number for Karim Mahmoud is 1871908939. It was assigned to this individual provider in the NPPES registry on June 27, 2014.

Where is Karim Mahmoud located?

Karim Mahmoud practices at 1700 Medical Center Pkwy, Murfreesboro, TN 37129. The listed phone number is (615) 396-4694.

What is Karim Mahmoud's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Karim Mahmoud enrolled in Medicare?

Yes. Karim Mahmoud 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 Karim Mahmoud's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karim Mahmoud reassigns Medicare benefits to 8 organizations: Havely Springs Physician Services, PC (Murfreesboro, TN), Saint Thomas Medical Partners (Franklin, TN), Mdtele LLC (Franklin, TN), Beaman Physician Services, PC (Nashville, TN), Cookeville Hospitalist Group, PLLC (Cookeville, TN) and 3 more organizations, listed in the Medicare section above. 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 Karim Mahmoud's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Karim Mahmoud accept?

Health plans from Alliant Health Plans, Inc. and Oscar Insurance Company list Karim Mahmoud 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.

Is Karim Mahmoud affiliated with any hospitals?

According to CMS data, Karim Mahmoud is affiliated with Chi Memorial Hospital- Georgia, Unity Medical Center, Saint Thomas Rutherford Hospital, Southern Tennessee Regional Hlth System Winchester and Memorial Healthcare System, Inc.

When was this NPI record last updated?

The NPPES record for Karim Mahmoud was last updated on January 4, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.