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

ERICA LYNN DEENIHAN FNP
NPI 1861033060
Nurse Practitioner - Family in Dyer, IN

Q: What is Erica Deenihan's NPI number?

The NPI number for Erica Deenihan is 1861033060. It was assigned to this individual provider in the NPPES registry on September 30, 2019.

Q: What is Erica Deenihan's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Q: When was this NPI record last updated?

The NPPES record for Erica Deenihan was last updated on July 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 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.

Active since September 30, 2019PECOS EnrolledAccepts Medicare Assignment

1001 CALUMET AVE, DYER, IN 46311(219) 924-8178 Get Directions Write a Review

NPPES record last updated: July 7, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 7, 2026, Dec 7, 2022, Mar 22, 2021 and 1 more (4 updates tracked since 2019).

On this page

About Erica Lynn Deenihan Fnp NPPES

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

ERICA LYNN DEENIHAN FNP (NPI 1861033060) is an individual family provider in Dyer, Indiana, licensed in Indiana (71009656A) and active in the NPI registry since September 2019. She is enrolled in Medicare PECOS, is affiliated with St Catherine Hospital Inc, and maintains 6 additional practice locations.

NPPES Registry Identity

NPI1861033060

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameERICA LYNN DEENIHANCredential: FNP

Location Address1001 CALUMET AVEDyer, IN 46311-1596

Mailing Address1001 Calumet AveDyer, IN 46311-1596 · (219) 924-8178

Phone(219) 924-8178

Sole ProprietorNo

Medical School CMSOtherGraduated 2016

Enumeration DateSeptember 30, 2019

Last NPPES UpdateJuly 7, 20264 updates tracked since enumeration

NPPES CertifiedJuly 7, 2026

✔ NPI 1861033060 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in IN · 71009656A

Also ListedHospitalistTaxonomy 208M00000X · License 71009656A (IN)

Also ListedNurse PractitionerTaxonomy 363L00000X · License 2019052720 (IN)

1001 CALUMET AVE, Dyer, IN 46311

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Secondary Practice Locations 6

Location 1701 Superior AveMunster, IN 46321-4037 · Phone (219) 922-4200

Location 224 Joliet StDyer, IN 46311-1705 · Phone (219) 865-2141

Location 312750 Saint Francis DrCrown Point, IN 46307-0264 · Phone (219) 852-1524 · Fax (219) 933-2288

Location 45454 Hohman AveHammond, IN 46320-1931 · Phone (219) 932-2300

Location 54321 Fir StEast Chicago, IN 46312-3049 · Phone (219) 392-7329 · Fax (219) 703-6883

Location 61201 S Main StCrown Point, IN 46307-8481 · Phone (219) 738-2100

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Erica Lynn Deenihan Fnp 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 ID244666972

PECOS Enrollment IDI20200128003080

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.

Areas of Expertise CMS Part B claims 21

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

189 services64 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

173 services54 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

49 services39 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.

36 services22 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

32 services30 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.

32 services32 patients

Albumin (protein) level 82040

The Albumin Level test measures the amount of albumin, a vital protein made by the liver, in your blood. This protein helps keep fluid in your bloodstream so it doesn't leak into other tissues. It's also vital for tissue growth and healing. Low or high levels can indicate certain health issues.

31 services29 patients

Bilirubin level, total 82247

A total bilirubin level test is a blood test that helps check how well your liver is functioning. It measures bilirubin, a yellow substance your body creates when it breaks down red blood cells. High levels may indicate a problem with your liver or bile duct.

31 services29 patients

Calcium level, total 82310

A total calcium level test measures the amount of calcium in your blood. Calcium is essential for body functions like bone formation, nerve signal transmission, and muscle contraction. Abnormal levels may indicate conditions like bone disease or kidney disorders.

31 services29 patients

Blood chloride level 82435

A blood chloride level test measures the amount of chloride, a type of electrolyte, in your blood. Electrolytes help balance the amount of fluids in your body and maintain your body's acid-base balance. This test can help diagnose health issues like kidney diseases, liver diseases, and heart failure.

31 services29 patients

Blood creatinine level 82565

A blood creatinine level test measures the amount of creatinine in your blood. Creatinine is a waste product that your body produces when it uses energy. High levels may indicate that your kidneys aren't working properly. This test is often used to monitor kidney health.

31 services29 patients

Phosphatase (enzyme) level, alkaline 84075

The Alkaline Phosphatase Level test measures the amount of alkaline phosphatase, an enzyme, in your blood. High or low levels can indicate a variety of health conditions, such as liver disease or bone disorders. It's a common test done to help diagnose and monitor these conditions.

31 services29 patients

Blood potassium level 84132

A blood potassium level test measures the amount of potassium in your blood. Potassium is a vital mineral for the body, helping nerves and muscles, especially the heart, to function properly. Abnormal levels can cause health issues like irregular heartbeat, muscle weakness, or numbness.

31 services29 patients

Total protein level, blood 84155

A total protein level blood test measures the amount of proteins in your blood. Proteins are essential for body functions, including immune response, tissue repair, and nutrient transportation. Abnormal levels may indicate certain diseases or conditions. It's a simple test involving a blood draw.

31 services29 patients

Blood sodium level 84295

A blood sodium level test measures the amount of sodium, a vital mineral, in your blood. It helps assess your body's water levels and the function of your nerves and muscles. Abnormal levels may indicate conditions like dehydration, kidney disease, or hormonal imbalances.

31 services29 patients

Liver enzyme (sgot), level 84450

A Liver Enzyme (SGOT) Level test is a simple blood test used to measure the amount of certain enzymes in your blood. These enzymes are normally found in liver cells. If the liver is damaged or diseased, these enzymes can leak into your bloodstream, indicating potential liver issues.

31 services29 patients

Liver enzyme (sgpt), level 84460

A liver enzyme (SGPT) level test is a blood test that checks the health of your liver. SGPT is an enzyme found in your liver cells. If your liver is damaged or inflamed, SGPT can leak into your bloodstream, raising the enzyme level. This test helps identify liver diseases early.

31 services29 patients

Urea nitrogen level to assess kidney function, quantitative 84520

The urea nitrogen level test is a routine blood test that checks the amount of urea nitrogen in your blood to evaluate how well your kidneys are working. If the levels are higher than normal, it may indicate that your kidneys are not functioning properly.

31 services29 patients

Administration of chemotherapy into vein, 1 hour or less 96413

Chemotherapy is a treatment that uses drugs to destroy cancer cells. When administered into a vein, it's often through an IV. This procedure usually lasts 1 hour or less. You may feel a slight pinch as the needle is inserted, but it's generally painless.

19 services17 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

18 services12 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.

18 services18 patients

Hospital Affiliations CMS Care Compare 5

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

St Catherine Hospital Inc

Acute Care Hospitals · East Chicago, IN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number150008

Location4321 Fir StreetEast Chicago, IN 46312 · Lake County

Emergency services Birthing friendly

Franciscan Health Michigan City

Acute Care Hospitals · Michigan City, IN

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number150015

Location3500 Franciscan WayMichigan City, IN 46360 · La Porte County

Emergency services Birthing friendly

St Mary Medical Center Inc

Acute Care Hospitals · Hobart, IN

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number150034

Location1500 S Lake Park AveHobart, IN 46342 · Lake County

Emergency services Birthing friendly

Community Hospital

Acute Care Hospitals · Munster, IN

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number150125

Location901 Macarthur BlvdMunster, IN 46321 · Lake County

Emergency services Birthing friendly

Franciscan Health Crown Point

Acute Care Hospitals · Crown Point, IN

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number150126

Location12750 Saint Francis DriveCrown Point, IN 46307 · Lake County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46311 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

$82.04 typical visit price

range $53.07 – $161.76

Typical copayment $20.51 (range $13.26 – $40.44)

Most-billed visit code 99203

Established Patient

$94.22 typical visit price

range $16.93 – $132.22

Typical copayment $23.55 (range $4.23 – $33.05)

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 17

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

DANIELLE SIMON APRN

Nurse Practitioner (Family)

1001 CALUMET AVE
DYER, IN 46311

Lake County (219) 924-8178

SAMEER SHARMA M.D.

Obstetrics & Gynecology (Gynecologic Oncology)

1001 CALUMET AVE
DYER, IN 46311

Lake County (219) 864-2086

MOHAMAD KASSAR M.D.

Internal Medicine (Hematology & Oncology)

1001 CALUMET AVE
DYER, IN 46311

Lake County (219) 924-8178

WALGREEN CO

Pharmacy

1001 CALUMET AVE, STE 101
DYER, IN 46311

Lake County (219) 227-3557

MELISSA KRZUS

Nurse Practitioner (Family)

1001 CALUMET AVE
DYER, IN 46311

Lake County (219) 924-8178

AMANDA MEYERS NP-C

Nurse Practitioner (Family)

1001 CALUMET AVE
DYER, IN 46311

Lake County (219) 924-8178

DR. NEEL BHUPENDRA SHAH M.D.

Internal Medicine (Hematology & Oncology)

1001 CALUMET AVE
DYER, IN 46311

Lake County (219) 924-8178

MARIA MARRERO NP

Nurse Practitioner (Family)

1001 CALUMET AVE
DYER, IN 46311

Lake County (219) 924-8178

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 Erica Deenihan's NPI number?

The NPI number for Erica Deenihan is 1861033060. It was assigned to this individual provider in the NPPES registry on September 30, 2019.

Where is Erica Deenihan located?

Erica Deenihan practices at 1001 Calumet Ave, Dyer, IN 46311. The listed phone number is (219) 924-8178.

What is Erica Deenihan's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Erica Deenihan enrolled in Medicare?

Yes. Erica Deenihan 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.

What insurance does Erica Deenihan accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and CareSource list Erica Deenihan 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 Erica Deenihan affiliated with any hospitals?

According to CMS data, Erica Deenihan is affiliated with St Catherine Hospital Inc, Franciscan Health Michigan City, St Mary Medical Center Inc, Community Hospital and Franciscan Health Crown Point.

When was this NPI record last updated?

The NPPES record for Erica Deenihan was last updated on July 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 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.