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MEGAN RENEE RATTERMAN D.O.
NPI 1407145683
Internal Medicine - Hematology & Oncology in Sheridan, WY

Active since March 28, 2011PECOS EnrolledAccepts Medicare Assignment
71.6/100
CMS Quality Rating
1401 W 5TH ST, SHERIDAN, WY 82801(307) 674-6022 Get Directions Write a Review

NPPES record last updated: October 20, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 11, 2021, Jun 19, 2017 (2 updates tracked since 2017).

About Megan Renee Ratterman D.o. NPPES

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

MEGAN RENEE RATTERMAN D.O. (NPI 1407145683) is an individual hematology & oncology provider in Sheridan, Wyoming, licensed in Wyoming (11132A) and active in the NPI registry since March 2011. She is enrolled in Medicare PECOS, is affiliated with Billings Clinic, and is a graduate of Other (2011).

NPPES Registry Identity

NPI1407145683
Entity TypeIndividualFemale
Primary Taxonomy207RH0003X
Provider Legal NameMEGAN RENEE RATTERMANCredential: D.O.
Location Address1401 W 5TH STSheridan, WY 82801
Mailing Address1401 W 5th StSheridan, WY 82801-2799 · (307) 674-6022
Phone(307) 674-6022
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateMarch 28, 2011
Last NPPES UpdateOctober 20, 20252 updates tracked since enumeration
NPPES CertifiedOctober 20, 2025
✔ NPI 1407145683 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in WY · 11132A
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Also ListedInternal MedicineTaxonomy 207R00000X · License 125.059595 (IL)
1401 W 5TH ST, Sheridan, WY 82801
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Wyoming, UnitedHealthcare.Insurance ›

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

Megan Renee Ratterman D.o. 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 ID4385949825
PECOS Enrollment IDI20170818000090
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 Reassignment

Medicare enrollment records show Megan Ratterman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Memorial Hospital Of Sheridan County
0.1 mi
General Acute Care Hospital
1401 W 5TH ST
Sheridan, WY 82801
  • Reassigned Medicare billing, Wyoming enrollment
  • 133 clinicians in this Medicare group
NPI 1487707188 (307) 672-1000

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 7

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.
364 services162 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.
274 services198 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.
87 services55 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
44 services44 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.
36 services36 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
12 services12 patients

Hospital Affiliations CMS Care Compare 4

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

Billings Clinic

Acute Care Hospitals · Billings, MT
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number270004
Location2800 10th Ave NBillings, MT 59101 · Yellowstone County
Emergency services Birthing friendly

St Vincent Healthcare

Acute Care Hospitals · Billings, MT
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number270049
Location1233 N 30th StBillings, MT 59101 · Yellowstone County
Emergency services Birthing friendly

Sheridan Memorial Hospital

Acute Care Hospitals · Sheridan, WY
4/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number530006
Location1401 W 5th StSheridan, WY 82801 · Sheridan County
Emergency services

Johnson County Healthcare Center

Critical Access Hospitals · Buffalo, WY
OwnershipGovernment - Hospital District or Authority
CMS Certification Number531308
Location497 West LottBuffalo, WY 82834 · Johnson County

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 82801 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
$170.72 typical visit price
range $56.42 – $170.72
Typical copayment $42.68 (range $14.10 – $42.68)
Most-billed visit code 99205
Established Patient
$99.46 typical visit price
range $18.19 – $139.32
Typical copayment $24.86 (range $4.54 – $34.83)
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.

71.6/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality60.8
Promoting Interoperability95
Improvement Activities40
Cost48.7

Other Providers at the Same Location NPPES 20

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

ROCKY MOUNTAIN HOLDINGS, LLC
Ambulance (Air Transport)
1401 W 5TH ST
SHERIDAN, WY 82801
Sheridan County (888) 636-4438
GREGORY GERRITT MARINO DO
Internal Medicine (Hematology & Oncology)
1401 W 5TH ST
SHERIDAN, WY 82801
Sheridan County (307) 674-6022
MEMORIAL HOSPITAL OF SHERIDAN COUNTY
Psychiatric Unit
1401 W 5TH ST
SHERIDAN, WY 82801
Sheridan County (307) 672-1000
DR. KRISTEN LEANN SCHAEFER M.D.
Anesthesiology
1401 W 5TH ST
SHERIDAN, WY 82801
Sheridan County (307) 672-1000
DAVIS M SWAN MD
Anesthesiology
1401 W 5TH ST
SHERIDAN, WY 82801
Sheridan County (307) 672-7874
LACI LITTLE N.P.
Nurse Practitioner (Family)
1401 W 5TH ST
SHERIDAN, WY 82801
Sheridan County (307) 675-5850
PATRICIA TOBI M.D.
Anesthesiology
1401 W 5TH ST, SHERIDAN MEMORIAL HOSPITAL
SHERIDAN, WY 82801
Sheridan County (307) 672-1000
MEMORIAL HOSPITAL OF SHERIDAN COUNTY
Hospice Care, Community Based
1401 W 5TH ST
SHERIDAN, WY 82801
Sheridan County (307) 672-1000

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 Megan Ratterman's NPI number?

The NPI number for Megan Ratterman is 1407145683. It was assigned to this individual provider in the NPPES registry on March 28, 2011.

Where is Megan Ratterman located?

Megan Ratterman practices at 1401 W 5th St, Sheridan, WY 82801. The listed phone number is (307) 674-6022.

What is Megan Ratterman's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Megan Ratterman enrolled in Medicare?

Yes. Megan Ratterman 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 organization bills Medicare for Megan Ratterman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Megan Ratterman reassigns Medicare benefits to Memorial Hospital Of Sheridan County (Sheridan, WY). The 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 Megan Ratterman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Megan Ratterman accept?

Health plans from Blue Cross Blue Shield of Wyoming and UnitedHealthcare list Megan Ratterman 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 Megan Ratterman affiliated with any hospitals?

According to CMS data, Megan Ratterman is affiliated with Billings Clinic, St Vincent Healthcare, Sheridan Memorial Hospital and Johnson County Healthcare Center.

When was this NPI record last updated?

The NPPES record for Megan Ratterman was last updated on October 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.