Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. SEBASTIAN GREY MORROW M.D.
NPI 1780905273
Internal Medicine in Nampa, ID

Q: What is Sebastian Morrow's NPI number?

The NPI number for Sebastian Morrow is 1780905273. It was assigned to this individual provider in the NPPES registry on June 18, 2010. The provider is also known as Arin Der-Sarkissian.

Q: What is Sebastian Morrow's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Sebastian Morrow was last updated on September 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 49 days 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 June 18, 2010PECOS EnrolledAccepts Medicare Assignment

4300 E FLAMINGO AVE, NAMPA, ID 83687(208) 463-5000 Get Directions Write a Review

NPPES record last updated: September 17, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 17, 2026, Aug 20, 2026, Jul 10, 2026 and 3 more (6 updates tracked since 2020).

On this page

About Dr. Sebastian Grey Morrow M.d. NPPES

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

DR. SEBASTIAN GREY MORROW M.D. (NPI 1780905273) is an individual internal medicine provider in Nampa, Idaho, licensed in Mississippi (22955) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS, is affiliated with Forrest General Hospital, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1780905273

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. SEBASTIAN GREY MORROWCredential: M.D.

Location Address4300 E FLAMINGO AVENampa, ID 83687-3138

Mailing AddressPo Box 190930Boise, ID 83719-0930 · (208) 302-9342 · Fax (208) 367-5180

Phone(208) 463-5000

Sole ProprietorNo

Medical School CMSOtherGraduated 2009

Enumeration DateJune 18, 2010

Last NPPES UpdateSeptember 17, 20266 updates tracked since enumeration

NPPES CertifiedSeptember 17, 2026

✔ NPI 1780905273 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Licenses✔ Licensed in MS · 22955✔ Licensed in NV · 16577

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedHospitalistTaxonomy 208M00000X · License 2381116 (ID), 22955 (MS)

4300 E FLAMINGO AVE, Nampa, ID 83687

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Other Names 1

Former Name (1)Arin Der-sarkissian

Other Identifiers 1

Medicaid06334311MS

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Alabama, Blue Cross Blue Shield of Arizona, Molina Healthcare.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. Sebastian Grey Morrow 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 ID2264664226

PECOS Enrollment IDI20140407001474

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 Sebastian Morrow reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Saint Alphonsus Regional Medical Center Inc

8.3 mi

Family Medicine

712 AVIATION WAY
Caldwell, ID 83605

Reassigned Medicare billing, Idaho enrollment
781 clinicians in this Medicare group

NPI 1861676298 (208) 302-1000

Nevada Acute Medical Services-Scherr 1 PC

514 mi

Hospitalist

2500 N TENAYA WAY
Las Vegas, NV 89128

Reassigned Medicare billing, Nevada enrollment
156 clinicians in this Medicare group

NPI 1992244438 (865) 693-1000

Banner Hospital Based Physicians Arizona LLC

533 mi

Multi-Specialty

501 N NAVAJO, MAILING PO BOX 1447 PAGE 86040-1447
Page, AZ 86040

Reassigned Medicare billing, Arizona enrollment
1,081 clinicians in this Medicare group

NPI 1316294242 (928) 645-0112

Apogee Medical Group Inc

640 mi

Internal Medicine

101 CIVIC CENTER LN
Lake Havasu City, AZ 86403

Reassigned Medicare billing, Arizona enrollment
240 clinicians in this Medicare group

NPI 1760652218 (928) 855-8185

Banner - University Hospital Based Physicians LLC

738 mi

General Acute Care Hospital

2901 N CENTRAL AVE STE 160
Phoenix, AZ 85012

Reassigned Medicare billing, Arizona enrollment
728 clinicians in this Medicare group

NPI 1750751566 (602) 747-4000

Banner-University Medical Group

738 mi

Multi-Specialty

2901 N CENTRAL AVE
Phoenix, AZ 85012

Reassigned Medicare billing, Arizona enrollment
1,514 clinicians in this Medicare group

NPI 1508809427 (602) 747-4000

Hattiesburg Clinic PA

1,682 mi

Family Medicine

704 FIFTH STREET
Collins, MS 39428

Reassigned Medicare billing, Mississippi enrollment
696 clinicians in this Medicare group

NPI 1265528160 (601) 765-4414

Hospitalist Services Of Meridian PA

1,693 mi

Hospitalist

2124 14TH ST
Meridian, MS 39301

Reassigned Medicare billing, Mississippi enrollment
88 clinicians in this Medicare group

NPI 1639629777 (601) 553-6000

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 5

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.

228 services93 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

126 services124 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.

41 services41 patients

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.

39 services19 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.

22 services22 patients

Hospital Affiliations CMS Care Compare

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

Forrest General Hospital

Acute Care Hospitals · Hattiesburg, MS

1/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number250078

Location6051 Us Highway 49 SouthHattiesburg, MS 39404 · Forrest County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 83687 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

$121.27 typical visit price

range $52.44 – $160.17

Typical copayment $30.31 (range $13.11 – $40.04)

Most-billed visit code 99204

Established Patient

$93.26 typical visit price

range $16.68 – $130.93

Typical copayment $23.31 (range $4.17 – $32.73)

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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

4 suppliers44 claims44 services$18.14 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

4 suppliers44 claims44 services$98.13 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

MR. JAMES RICHARD TEATER DPT

Physical Therapist