What is Chelsea Hartzell's NPI number?

Chelsea Hartzell's National Provider Identifier (NPI) is 1003450354, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Chelsea Hartzell's specialty?

Chelsea Hartzell is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).

Where is Chelsea Hartzell located?

Chelsea Hartzell's practice location on file with NPPES is 202 Sherwood Ln, Lena, IL 61048-9624.

What is Chelsea Hartzell's phone number?

The practice phone number listed in the NPPES registry for Chelsea Hartzell is (815) 541-4654.

Does Chelsea Hartzell accept Medicare?

Chelsea Hartzell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Chelsea Hartzell's NPI active?

Yes — Chelsea Hartzell's NPI (1003450354) is active in the NPPES registry as of the last update on 2021-11-02.

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Chelsea Hartzell

NPI 1003450354 · Gastroenterology Physician · Lena, IL

Chelsea Hartzell is a Gastroenterology Physician provider in Lena, IL (NPI 1003450354).

Provider details

NPI number: 1003450354
Entity type: Individual
Primary specialty: Gastroenterology PhysicianAllopathic & Osteopathic Physicians
Sex: Female
Sole proprietor: No

Practice location

202 Sherwood Ln

Lena, IL 61048-9624

Phone: (815) 541-4654

Street-level locationGet directions

More IL providers

Mailing address

202 Sherwood Ln

Lena, IL 61048-9624

Specialties & taxonomies

Gastroenterology PhysicianPrimary207RG0100XLicense 209023887 (IL)
Allopathic & Osteopathic Physicians
Student in an Organized Health Care Education/Training Program390200000X
Student, Health Care

Additional practice locations (1)

1036 W Stephenson St
Freeport, IL 61032-4865
Phone: (815) 599-7935

Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(57/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
7 yrs in NPPES registry
Profile completeness25% of score
83% of core fields populated
Practice footprint15% of score
2 documented practice locations
Medicare service volume (vs. specialty peers)25% of score
312 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	154	$74
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	112	$104
New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203	32	$91
Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215	14	$147

Typical Medicare-allowed amounts for these services range $74–$147 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Pantoprazole Sodium	607	175
Omeprazole	279	82
Famotidine	111	37
Linaclotidebrand: Linzess	77	17
Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf	70	70
Esomeprazole Magnesium	65	18
Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$119 across 6 records (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Enumerated: 2019-10-30
Last updated: 2021-11-02
Certified: 2021-11-02

Frequently asked questions

What is Chelsea Hartzell's NPI number?: Chelsea Hartzell's National Provider Identifier (NPI) is 1003450354, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Chelsea Hartzell's specialty?: Chelsea Hartzell is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
Where is Chelsea Hartzell located?: Chelsea Hartzell's practice location on file with NPPES is 202 Sherwood Ln, Lena, IL 61048-9624.
What is Chelsea Hartzell's phone number?: The practice phone number listed in the NPPES registry for Chelsea Hartzell is (815) 541-4654.
Does Chelsea Hartzell accept Medicare?: Chelsea Hartzell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Chelsea Hartzell's NPI active?: Yes — Chelsea Hartzell's NPI (1003450354) is active in the NPPES registry as of the last update on 2021-11-02.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	154	$74
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	112	$104
New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203	32	$91
Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215	14	$147

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Pantoprazole Sodium	607	175
Omeprazole	279	82
Famotidine	111	37
Linaclotidebrand: Linzess	77	17
Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf	70	70
Esomeprazole Magnesium	65	18
Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$119 across 6 records (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Additional practice locations (1)

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Additional practice locations (1)

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments