DR. NATHAN SCHOMAKER M.D.
NPI 1225472327
Internal Medicine - Gastroenterology in Lone Tree, CO

Q: What is Nathan Schomaker's NPI number?

The NPI number for Nathan Schomaker is 1225472327. It was assigned to this individual provider in the NPPES registry on April 19, 2013.

Q: What is Nathan Schomaker's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Nathan Schomaker was last updated on May 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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 April 19, 2013PECOS EnrolledAccepts Medicare Assignment

82.49/100

CMS Quality Rating

10103 RIDGEGATE PKWY STE 312, LONE TREE, CO 80124(303) 788-8888(866) 456-4594 Get Directions Write a Review

NPPES record last updated: May 29, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Nathan Schomaker M.d. NPPES

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

DR. NATHAN SCHOMAKER M.D. (NPI 1225472327) is an individual gastroenterology provider in Lone Tree, Colorado, licensed in Colorado (DR.0062181) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS and is a graduate of University Of Cincinnati College Of Medicine (2013).

NPPES Registry Identity

NPI1225472327

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. NATHAN SCHOMAKERCredential: M.D.

Location Address10103 RIDGEGATE PKWY STE 312Lone Tree, CO 80124-5525

Mailing Address10103 Ridgegate Pkwy Ste 312Lone Tree, CO 80124-5525 · (303) 788-8888 · Fax (866) 456-4594

Phone(303) 788-8888

Fax(866) 456-4594

Sole ProprietorNo

Medical School CMSUniversity Of Cincinnati College Of MedicineGraduated 2013

Enumeration DateApril 19, 2013

Last NPPES UpdateMay 29, 2024

NPPES CertifiedMay 29, 2024

✔ NPI 1225472327 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in CO · DR.0062181

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

10103 RIDGEGATE PKWY STE 312, Lone Tree, CO 80124

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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. Nathan Schomaker M.d. 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 ID7214179654

PECOS Enrollment IDI20190715000443

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

Medicare enrollment records show Nathan Schomaker reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

South Denver Gastroenterology, PC

Same address

Gastroenterology

10103 RIDGEGATE PKWY, STE 312
Lone Tree, CO 80124

Reassigned Medicare billing, Colorado enrollment
Medicare enrollment name: South Denver Gastroenterology, P.C
55 clinicians in this Medicare group

NPI 1447364831 (303) 788-8888

Lincoln Community Hospital

37 mi

Family Medicine

404 E FRONT ST
Byers, CO 80103

Reassigned Medicare billing, Colorado enrollment
Also billed through NPI 1720107519 (Colorado)
79 clinicians in this Medicare group

NPI 1609507409 (303) 822-5100

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 13

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.

Injection, vedolizumab, intravenous, 1 mg J3380

Vedolizumab is a medication given via injection. It's used to treat certain bowel conditions (such as Crohn's disease, ulcerative colitis) by reducing inflammation. It works by blocking a certain protein that causes this inflammation.

5,700 services15 patients

Injection, infliximab, excludes biosimilar, 10 mg J1745

Infliximab is a medication given via injection to treat certain autoimmune conditions. It works by blocking the action of a substance in your body that causes inflammation. Each dose is based on your medical condition and response to treatment.

920 services11 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

89 services89 patients

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.

55 services44 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

52 services52 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

44 services37 patients

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

43 services43 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.

35 services28 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.

35 services28 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

31 services31 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

21 services21 patients

Dilation of esophagus 43450

Dilation of the esophagus is a procedure aimed to stretch or open up your esophagus (the tube connecting your mouth to your stomach) when it's narrow. It helps to improve swallowing and alleviate discomfort. It's typically performed using a flexible tube or balloon, under sedation.

14 services14 patients

Removal of large bowel tissue using a flexible endoscope 45390

This procedure, known as a colonoscopy, involves using a flexible endoscope to examine and potentially remove tissue from the large intestine. The endoscope allows the doctor to view the bowel lining directly and remove any abnormal tissue for further analysis.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80124 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

$132.55 typical visit price

range $58.06 – $174.82

Typical copayment $33.13 (range $14.51 – $43.70)

Most-billed visit code 99204

Established Patient

$102.03 typical visit price

range $18.88 – $142.79

Typical copayment $25.50 (range $4.72 – $35.69)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

82.49/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

93.7

Promoting Interoperability

100

Improvement Activities

Cost

47.94

Reported Quality Measures

Advance Care Plan

18%187 patients1/55-star benchmark: 100%

Age Appropriate Screening Colonoscopy

Lower rates are better for this measure.

0%581 patients

Appropriate follow-up interval based on pathology findings in screening colonoscopy

99%228 patients

Appropriate Follow-Up Interval for Normal Colonoscopy in Average Risk Patients

98%135 patients

Closing the Referral Loop: Receipt of Specialist Report

24%29 patients2/55-star benchmark: 87%

Colonoscopy Interval for Patients with a History of Adenomatous Polyps - Avoidance of Inappropriate Use

100%170 patients

Colorectal Cancer Screening

79%303 patients4/55-star benchmark: 88%

Documentation of Current Medications in the Medical Record

95%906 patients4/55-star benchmark: 100%

e-Prescribing

98%520 patients4/55-star benchmark: 100%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

34%535 patients2/55-star benchmark: 98%

Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented

16%677 patients2/55-star benchmark: 61%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients screened: 0% · 208 patients

0%208 patients

Provide Patients Electronic Access to Their Health Information

96%283 patients4/55-star benchmark: 100%

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 0% · 182 patients

Patients totalRate: 3% · 182 patients

3%182 patients4/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 10

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

PETER BYRNE NP

Nurse Practitioner (Acute Care)

10103 RIDGEGATE PKWY STE 312
LONE TREE, CO 80124

Douglas County (303) 788-8888

DR. ASHLEY VACHON

Internal Medicine (Gastroenterology)

10103 RIDGEGATE PKWY STE 312
LONE TREE, CO 80124

Douglas County (412) 692-4700

MARLANA J RADCLIFFE MD

Internal Medicine (Gastroenterology)

10103 RIDGEGATE PKWY STE 312
LONE TREE, CO 80124

Douglas County (303) 788-8888

THERESA LEE M.D.

Internal Medicine (Gastroenterology)

10103 RIDGEGATE PKWY STE 312
LONE TREE, CO 80124

Douglas County (303) 788-8888

MISS ERIKA M LEE M.D.

Internal Medicine (Gastroenterology)

10103 RIDGEGATE PKWY STE 312
LONE TREE, CO 80124

Douglas County (303) 788-8888

JESSICA RAMIREZ

Physician Assistant (Medical)

10103 RIDGEGATE PKWY STE 312, ASPEN BUILDING
LONE TREE, CO 80124

Douglas County (303) 788-8888

DAWN DENISE FANGROW CRNA

Nurse Anesthetist, Certified Registered

10103 RIDGEGATE PKWY STE 312
LONE TREE, CO 80124

Douglas County (303) 788-8888

KRISTA M POGGE RD

Dietitian, Registered

10103 RIDGEGATE PKWY STE 312
LONE TREE, CO 80124

Douglas County (303) 788-8888

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 Nathan Schomaker's NPI number?

The NPI number for Nathan Schomaker is 1225472327. It was assigned to this individual provider in the NPPES registry on April 19, 2013.

Where is Nathan Schomaker located?

Nathan Schomaker practices at 10103 Ridgegate Pkwy Ste 312, Lone Tree, CO 80124. The listed phone number is (303) 788-8888.

What is Nathan Schomaker's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Nathan Schomaker enrolled in Medicare?

Yes. Nathan Schomaker 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 Nathan Schomaker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Schomaker reassigns Medicare benefits to 2 organizations: South Denver Gastroenterology, PC (Lone Tree, CO) and Lincoln Community Hospital (Byers, CO). 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 Nathan Schomaker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Nathan Schomaker was last updated on May 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.