1. Home
  2. Directory
  3. Montana
  4. Hamilton
  5. Family Medicine
  6. NPI Profile

JOHANNA DREILING M.D.
NPI 1114174414
Family Medicine in Hamilton, MT

Active since August 19, 2008PECOS EnrolledAccepts Medicare Assignment
623 S 4TH ST, HAMILTON, MT 59840(406) 544-0295 Get Directions Write a Review

NPPES record last updated: January 14, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jan 14, 2026, Jul 9, 2025, Aug 28, 2020 and 1 more (4 updates tracked since 2017).

About Johanna Dreiling M.d. NPPES

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

JOHANNA DREILING M.D. (NPI 1114174414) is an individual family medicine provider in Hamilton, Montana, licensed in Montana (12495) and active in the NPI registry since August 2008. She is enrolled in Medicare PECOS, is affiliated with St. Patrick Hospital, and is a graduate of Mayo Medical School (2007).

NPPES Registry Identity

NPI1114174414
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameJOHANNA DREILINGCredential: M.D.
Location Address623 S 4TH STHamilton, MT 59840-2740
Mailing Address623 S 4th StHamilton, MT 59840-2740 · (406) 544-0295
Phone(406) 544-0295
Sole ProprietorNo
Medical School CMSMayo Medical SchoolGraduated 2007
Enumeration DateAugust 19, 2008
Last NPPES UpdateJanuary 14, 20264 updates tracked since enumeration
NPPES CertifiedJanuary 14, 2026
✔ NPI 1114174414 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in MT · 12495
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
623 S 4TH ST, Hamilton, MT 59840
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Mountain Health CO-OP.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

Johanna Dreiling 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 ID9739376351
PECOS Enrollment IDI20101208001209
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

3

Medicare enrollment records show Johanna Dreiling reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Sapphire Community Health Inc
0.6 mi
Federally Qualified Health Center (FQHC)
316 N 3RD ST
Hamilton, MT 59840
  • Reassigned Medicare billing, Montana enrollment
  • 15 clinicians in this Medicare group
NPI 1003146812 (406) 541-0032
True North Transformative Health LLC
2.7 mi
Family Medicine
484 OLD CORVALLIS RD
Hamilton, MT 59840
  • Reassigned Medicare billing, Montana enrollment
  • 3 clinicians in this Medicare group
NPI 1083345987 (406) 530-7439
Partnership Health Center Inc
44 mi
Federally Qualified Health Center (FQHC)
901 S 6TH ST W
Missoula, MT 59801
  • Reassigned Medicare billing, Montana enrollment
  • 91 clinicians in this Medicare group
NPI 1750926762 (406) 258-4496

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare 3

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

St. Patrick Hospital

Acute Care Hospitals · Missoula, MT
5/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number270014
Location500 W BroadwayMissoula, MT 59806 · Missoula County
Emergency services Birthing friendly

Community Medical Center

Acute Care Hospitals · Missoula, MT
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number270023
Location2827 Fort Missoula RdMissoula, MT 59804 · Missoula County
Emergency services Birthing friendly

Bitterroot Health - Daly Hospital

Critical Access Hospitals · Hamilton, MT
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number271340
Location1200 Westwood DrHamilton, MT 59840 · Ravalli County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59840 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
$87.97 typical visit price
range $56.81 – $172.26
Typical copayment $21.99 (range $14.20 – $43.06)
Most-billed visit code 99203
Established Patient
$100.16 typical visit price
range $18.24 – $140.32
Typical copayment $25.04 (range $4.56 – $35.08)
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.

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 Johanna Dreiling's NPI number?

The NPI number for Johanna Dreiling is 1114174414. It was assigned to this individual provider in the NPPES registry on August 19, 2008.

Where is Johanna Dreiling located?

Johanna Dreiling practices at 623 S 4th St, Hamilton, MT 59840. The listed phone number is (406) 544-0295.

What is Johanna Dreiling's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Johanna Dreiling enrolled in Medicare?

Yes. Johanna Dreiling 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 Johanna Dreiling's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Johanna Dreiling reassigns Medicare benefits to 3 organizations: Sapphire Community Health Inc (Hamilton, MT), True North Transformative Health LLC (Hamilton, MT) and Partnership Health Center Inc (Missoula, MT). 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 Johanna Dreiling's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Johanna Dreiling accept?

Health plans from Blue Cross and Blue Shield of Montana and Mountain Health CO-OP list Johanna Dreiling 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 Johanna Dreiling affiliated with any hospitals?

According to CMS data, Johanna Dreiling is affiliated with St. Patrick Hospital, Community Medical Center and Bitterroot Health - Daly Hospital.

When was this NPI record last updated?

The NPPES record for Johanna Dreiling was last updated on January 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.