Physician Profile
Alan Esker, MD
Unclaimed ProfileAbout Dr. Esker
Based in Freeport, IL, Alan Esker, MD is listed in the NPI registry under internal medicine. According to Medicare claims data, Alan cared for 34 Medicare patients across 34 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (815) 599-7740
- Email not available
Practice Locations
1010 FAIRWAY DR
Freeport, IL 61032
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Cardiometabolic
- High blood pressure (hypertension)
- High cholesterol and lipid disorders
- Metabolic syndrome
- Overweight and obesity
- Peripheral artery disease
- Prediabetes
- Stable coronary artery disease
- Type 2 diabetes
Digestive and liver
- Acid reflux (GERD)
- Alcohol-associated liver disease
- Constipation
- Diverticulosis and uncomplicated diverticulitis
- Fatty liver disease
- Irritable bowel syndrome
- Peptic ulcer disease
Endocrine, blood, and bone
- Anemia of chronic disease
- Gout
- Iron-deficiency anemia
- Osteoporosis
- Overactive thyroid (hyperthyroidism)
- Underactive thyroid (hypothyroidism)
- Vitamin B12 deficiency
- Vitamin D deficiency
Infectious disease
Kidney and urinary
- Acute kidney injury
- Chronic kidney disease
- Enlarged prostate (BPH)
- Overactive bladder
- Urinary tract infection
Respiratory
- Acute bronchitis
- Asthma
- Chronic obstructive pulmonary disease
- Community-acquired pneumonia
- Obstructive sleep apnea
Cardiac and vascular
- Atrial fibrillation
- Blood clots (DVT and pulmonary embolism)
- Chronic venous insufficiency
- Heart failure
- Stable angina
Neurologic and behavioral
Rheumatologic and pain
Procedures & services
Preventive and evaluation
- Annual physical and preventive visit
- Chronic disease management
- Medicare annual wellness visit
- Medication review and management
- Post-hospital transitional care
- Preoperative medical clearance
Screening and diagnostic testing
- Ambulatory blood-pressure monitoring
- Blood pressure screening
- Cancer screening and prevention planning
- Cholesterol screening
- Depression screening
- Diabetes and prediabetes screening
- Electrocardiogram
- Spirometry
Office procedures
Procedures Most Often Billed to Medicare
34 services · 34 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
23 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
11 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 5 related providers in 1 group
Common questions
What is Dr. Esker's specialty?
Dr. Esker is an internist in Freeport, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Internal Medicine”.
NPI registry
Where can I find Dr. Esker?
Dr. Esker is listed at 1010 FAIRWAY DR, Freeport, IL 61032. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Esker?
The number on file is (815) 599-7740. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Esker's NPI number?
Dr. Esker's National Provider Identifier is 1831159698. 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
How long has Dr. Esker been practicing?
Dr. Esker has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Dr. Esker known for?
According to Medicare billing data, Dr. Esker 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
Has Dr. Esker confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Esker. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.