DR. DOUGLAS JAMES AMMERMAN MD
NPI 1740622604
Student in an Organized Health Care Education/Training Program in Medford, OR

Q: What is Douglas Ammerman's NPI number?

The NPI number for Douglas Ammerman is 1740622604. It was assigned to this individual provider in the NPPES registry on July 20, 2013.

Q: What is Douglas Ammerman's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

Q: When was this NPI record last updated?

The NPPES record for Douglas Ammerman was last updated on January 4, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 July 20, 2013PECOS Enrolled

1111 CRATER LAKE AVE, MEDFORD, OR 97504(541) 732-5545(541) 732-5548 Get Directions Write a Review

NPPES record last updated: January 4, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 4, 2023, Aug 1, 2022 (2 updates tracked since 2022).

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About Dr. Douglas James Ammerman Md NPPES

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

DR. DOUGLAS JAMES AMMERMAN MD (NPI 1740622604) is an individual student in an organized health care education/training program in Medford, Oregon and active in the NPI registry since July 2013. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1740622604

Entity TypeIndividualMale

Primary Taxonomy390200000X

Provider Legal NameDR. DOUGLAS JAMES AMMERMANCredential: MD

Location Address1111 CRATER LAKE AVEMedford, OR 97504-6241

Mailing Address1111 Crater Lake AveMedford, OR 97504-6241 · (541) 732-5000

Phone(541) 732-5545

Fax(541) 732-5548

Sole ProprietorNo

Enumeration DateJuly 20, 2013

Last NPPES UpdateJanuary 4, 20232 updates tracked since enumeration

NPPES CertifiedJanuary 4, 2023

✔ NPI 1740622604 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care

Taxonomy Code390200000X

Definition

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Also ListedHospitalistTaxonomy 208M00000X · License MD212217 (OR)

1111 CRATER LAKE AVE, Medford, OR 97504

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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 (PECOS)

Dr. Douglas James Ammerman Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Douglas Ammerman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc

292 mi

Internal Medicine

975 SERENO DRIVE
Vallejo, CA 94589

Reassigned Medicare billing, California enrollment
20,078 clinicians in this Medicare group

NPI 1336222397 (707) 651-1000

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 3

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.

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.

186 services61 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

114 services34 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

49 services49 patients

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.

PROVIDENCE HOSPITALISTS & INTENSIVISTS

Internal Medicine (Critical Care Medicine)