Physician Profile
Nasir M. Ahmad, MD is a healthcare provider in Old Bridge, NJ specializing in infectious disease. According to Medicare claims data, Nasir cared for 2,049 Medicare patients across 4,907 services. The services billed most often include subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more, subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes, and initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
200 PERRINE RD STE 223
Old Bridge, NJ 08857
Within Infectious Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Bacterial infections
Bones & joints
Cardiovascular
Digestive infections
Fungal infections
General symptoms
Neurological infections
Parasitic infections
Post-infection conditions
Respiratory infections
Sexually transmitted infections
Skin & soft tissue
Travel-related infections
Urinary tract
Viral infections
Most searched procedures
Allergy & immunology
Allergy & Pharmacology
Antiviral treatments
Consultation & second opinions
Diagnostic evaluations
Diagnostics & screening
Gastrointestinal treatments
Infusions & Medications
Lab testing & monitoring
Medication management
Prevention & Prophylaxis
Prevention & prophylaxis
Travel medicine
4,907 services · 2,049 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
1,999 | More than most peers in Infectious Disease |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
1,922 | More than most peers in Infectious Disease |
| Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | Office visit | 99305 |
332 | More than most peers in Infectious Disease |
| Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | Office visit | 99310 |
331 | More often than most peers in Infectious Disease |
| Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more | Office visit | 99306 |
323 | More than most peers in Infectious Disease |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Ahmad is an infectious disease specialist in Old Bridge, NJ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Infectious Disease”.
NPI registry
Dr. Ahmad is listed at 200 Perrine Rd Ste 223, Old Bridge, NJ 08857. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (732) 895-1770. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Ahmad's National Provider Identifier is 1598730186. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Ahmad attended Other, graduating in 1995. This comes from the CMS National Downloadable File.
CMS public data
Dr. Ahmad has 31 years experience. Calculated from a graduation year of 1995, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Ahmad the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ahmad. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.