Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. SYED AMIR AHMED MD
NPI 1396794186
Internal Medicine - Infectious Disease in Huntsville, AL

Active since May 09, 2006PECOS EnrolledAccepts Medicare Assignment
420 LOWELL DR SE STE 301, HUNTSVILLE, AL 35801(256) 265-7955 Get Directions Write a Review

NPPES record last updated: October 15, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 15, 2026, Dec 5, 2024 (2 updates tracked since 2024).

About Dr. Syed Amir Ahmed Md NPPES

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

DR. SYED AMIR AHMED MD (NPI 1396794186) is an individual infectious disease provider in Huntsville, Alabama, licensed in Florida (ME84940) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Hca Florida Citrus Hospital, and maintains a secondary practice location in Oklahoma City.

NPPES Registry Identity

NPI1396794186
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameDR. SYED AMIR AHMEDCredential: MD
Location Address420 LOWELL DR SE STE 301Huntsville, AL 35801-3762
Mailing Address1504 Village Oak LnKissimmee, FL 34746-6558 · (407) 944-4458 · Fax (407) 944-4459
Sole ProprietorYes
Medical School CMSOtherGraduated 1992
Enumeration DateMay 9, 2006
Last NPPES UpdateOctober 15, 20262 updates tracked since enumeration
NPPES CertifiedOctober 15, 2026
✔ NPI 1396794186 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in FL · ME84940
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
Also ListedInternal MedicineTaxonomy 207R00000X · License ME84940 (FL)
420 LOWELL DR SE STE 301, Huntsville, AL 35801

Secondary Practice Location 1

Location 1700 NE 13th StOklahoma City, OK 73104-5004 · Phone (405) 420-0152 · Fax (405) 493-0689

Other Identifiers 2

Medicaid264659500FL
Medicaid300093181IN

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

Dr. Syed Amir Ahmed 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 ID2365516549
PECOS Enrollment IDI20080806000510
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

3

Medicare enrollment records show Syed Ahmed reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Infectious Disease
420 LOWELL DR, SUITE 301
Huntsville, AL 35801
  • Reassigned Medicare billing, Alabama enrollment
  • 5 clinicians in this Medicare group
Infectious Disease
6591 SW HIGHWAY 200
Ocala, FL 34476
  • Reassigned Medicare billing, Florida enrollment
  • 17 clinicians in this Medicare group
Infectious Disease
502 W HIGHLAND BLVD
Inverness, FL 34452
  • Reassigned Medicare billing, Florida enrollment

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.

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.
340 services140 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.
113 services109 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
90 services34 patients

Hospital Affiliations CMS Care Compare 2

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

Hca Florida Citrus Hospital

Acute Care Hospitals · Inverness, FL
2/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number100023
Location502 W Highland BlvdInverness, FL 34452 · Citrus County
Emergency services Birthing friendly

Adventhealth Ocala

Acute Care Hospitals · Ocala, FL
3/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number100062
Location1500 SW 1st AveOcala, FL 34474 · Marion County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 35801 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
$122.31 typical visit price
range $52.65 – $161.63
Typical copayment $30.57 (range $13.16 – $40.40)
Most-billed visit code 99204
Established Patient
$93.72 typical visit price
range $16.56 – $131.65
Typical copayment $23.43 (range $4.14 – $32.91)
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.

Other Providers at the Same Location NPPES 2

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

Internal Medicine
420 LOWELL DR SE STE 301
HUNTSVILLE, AL 35801
Internal Medicine (Infectious Disease)
420 LOWELL DR SE STE 301
HUNTSVILLE, AL 35801

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 Syed Ahmed's NPI number?

The NPI number for Syed Ahmed is 1396794186. It was assigned to this individual provider in the NPPES registry on May 9, 2006.

Where is Syed Ahmed located?

Syed Ahmed practices at 420 Lowell Dr SE Ste 301, Huntsville, AL 35801. The listed phone number is (256) 265-7955.

What is Syed Ahmed's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Syed Ahmed enrolled in Medicare?

Yes. Syed Ahmed 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 Syed Ahmed's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Syed Ahmed reassigns Medicare benefits to 3 organizations: Alabama Infectious Disease Center P.C. (Huntsville, AL), Idr Med Florida LLC (Ocala, FL) and Vital Signs Physicians Fl Pl (Inverness, FL). 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 Syed Ahmed's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Syed Ahmed accept?

Health plans from Blue Cross and Blue Shield of Alabama, Cigna HealthCare of Florida, Inc., Cigna Healthcare, Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) list Syed Ahmed 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 Syed Ahmed affiliated with any hospitals?

According to CMS data, Syed Ahmed is affiliated with Hca Florida Citrus Hospital and Adventhealth Ocala.

When was this NPI record last updated?

The NPPES record for Syed Ahmed was last updated on October 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days 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.