DR. NAOMI G DIGGS M.D.
NPI 1184870644
Internal Medicine in Seattle, WA

Active since August 14, 2008Opted out of Medicare · through Mar 8, 2027
96.04/100
CMS Quality Rating
1124 COLUMBIA ST STE 620, SEATTLE, WA 98104(206) 215-2550(206) 215-2555 Get Directions Write a Review

NPPES record last updated: February 25, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Feb 25, 2025, Sep 6, 2023 (2 updates tracked since 2023).

About Dr. Naomi G Diggs M.d. NPPES

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

DR. NAOMI G DIGGS M.D. (NPI 1184870644) is an individual internal medicine provider in Seattle, Washington, licensed in Washington (MD60224907) and active in the NPI registry since August 2008. She has opted out of Medicare through March 8, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1184870644
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. NAOMI G DIGGSCredential: M.D.
Location Address1124 COLUMBIA ST STE 620Seattle, WA 98104-2046
Mailing Address1124 Columbia St Ste 620Seattle, WA 98104-2046 · (206) 215-2550 · Fax (206) 215-2555
Fax(206) 215-2555
Sole ProprietorNo
Enumeration DateAugust 14, 2008
Last NPPES UpdateFebruary 25, 20252 updates tracked since enumeration
NPPES CertifiedFebruary 25, 2025
NPI 1184870644 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in WA · MD60224907
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.

1124 COLUMBIA ST STE 620, Seattle, WA 98104

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Opted out of Medicare

Dr. Naomi G Diggs M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from March 8, 2025 through March 8, 2027.

Opt-Out Effective DateMarch 8, 2025
Opt-Out In Effect ThroughMarch 8, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the 2024 & 2026 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.
78 services46 patients
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.
73 services61 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.
46 services41 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.
36 services36 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
30 services17 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.
26 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98104 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
$143.76 typical visit price
range $63.67 – $189.37
Typical copayment $35.94 (range $15.91 – $47.34)
Most-billed visit code 99204
Established Patient
$111.00 typical visit price
range $21.12 – $155.00
Typical copayment $27.75 (range $5.28 – $38.75)
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.

96.04/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality84.91
Promoting Interoperability100
Improvement Activities40

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.

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
2 suppliers15 claims15 services$67.72 avg. paid by Medicare
Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738
DME-Oxygen and Supplies · category DC000N
1 supplier12 claims12 services$34.42 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 2

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

Family Medicine
1124 COLUMBIA ST STE 620
SEATTLE, WA 98104
Internal Medicine
1124 COLUMBIA ST STE 620
SEATTLE, WA 98104

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1184870644, enumerated as an "individual" on August 14, 2008.

The provider is located at 1124 COLUMBIA ST STE 620 SEATTLE, WA 98104 and the phone number is (206) 215-2550.

Internal Medicine with taxonomy code 207R00000X.

The provider might be accepting Accepts: PacificSource Health Plans, Premera Blue Cross. Please consult your insurance carrier or call the provider to verify.