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DR. PRESTON FHOREST HELMLY MD
NPI 1881124139
Psychiatry & Neurology - Psychiatry in Johnson City, TN

Active since June 19, 2017PECOS EnrolledAccepts Medicare Assignment
1907 N ROAN ST STE 409, JOHNSON CITY, TN 37601(423) 430-9681(423) 430-8439 Get Directions Write a Review

NPPES record last updated: June 16, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 21, 2021, Mar 17, 2018, Jun 19, 2017 (3 updates tracked since 2017).

About Dr. Preston Fhorest Helmly Md NPPES

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

DR. PRESTON FHOREST HELMLY MD (NPI 1881124139) is an individual psychiatry provider in Johnson City, Tennessee, licensed in Tennessee (61710) and active in the NPI registry since June 2017. He is enrolled in Medicare PECOS and is a graduate of University Of South Carolina School Of Medicine (2017).

NPPES Registry Identity

NPI1881124139
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. PRESTON FHOREST HELMLYCredential: MD
Location Address1907 N ROAN ST STE 409Johnson City, TN 37601-3177
Mailing Address1907 N Roan St Ste 409Johnson City, TN 37601-3177 · (423) 430-9681 · Fax (423) 430-8439
Phone(423) 430-9681
Fax(423) 430-8439
Sole ProprietorNo
Medical School CMSUniversity Of South Carolina School Of MedicineGraduated 2017
Enumeration DateJune 19, 2017
Last NPPES UpdateJune 16, 20263 updates tracked since enumeration
NPPES CertifiedJune 16, 2026
✔ NPI 1881124139 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in TN · 61710
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
1907 N ROAN ST STE 409, Johnson City, TN 37601
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter Health, Ambetter of Alabama and more.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

Dr. Preston Fhorest Helmly Md 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 ID5193128262
PECOS Enrollment IDI20210727002087
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 Preston Helmly reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Hearthstone Psychiatry & Wellness, PLLC
Same address
Psychiatry
1907 N ROAN ST STE 409
Johnson City, TN 37601
  • Reassigned Medicare billing, Tennessee enrollment
  • 3 clinicians in this Medicare group
NPI 1073479796 (423) 430-9681

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 2

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 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.
28 services16 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
19 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37601 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
$160.89 typical visit price
range $52.64 – $160.89
Typical copayment $40.22 (range $13.16 – $40.22)
Most-billed visit code 99205
Established Patient
$66.01 typical visit price
range $16.72 – $131.41
Typical copayment $16.50 (range $4.18 – $32.85)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

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

HEARTHSTONE PSYCHIATRY & WELLNESS, PLLC
Psychiatry & Neurology (Psychiatry)
1907 N ROAN ST STE 409
JOHNSON CITY, TN 37601
Washington County (423) 430-9681
CARRIE ELIZABETH ROBEY M.D.
Psychiatry & Neurology (Psychiatry)
1907 N ROAN ST STE 409
JOHNSON CITY, TN 37601
Washington County (423) 430-9681

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 Preston Helmly's NPI number?

The NPI number for Preston Helmly is 1881124139. It was assigned to this individual provider in the NPPES registry on June 19, 2017.

Where is Preston Helmly located?

Preston Helmly practices at 1907 N Roan St Ste 409, Johnson City, TN 37601. The listed phone number is (423) 430-9681.

What is Preston Helmly's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Preston Helmly enrolled in Medicare?

Yes. Preston Helmly 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 Preston Helmly's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Preston Helmly reassigns Medicare benefits to Hearthstone Psychiatry & Wellness, PLLC (Johnson City, TN). 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 Preston Helmly's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Preston Helmly accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee and 2 other insurers list Preston Helmly 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.

When was this NPI record last updated?

The NPPES record for Preston Helmly was last updated on June 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.