GIA L HEMMEN MD
NPI 1205858123
Family Medicine - Adult Medicine in Kent, WA

NPI Status: Active since July 24, 2006

Contact Information

24920 104TH AVE SE
KENT, WA
ZIP 98030
Phone: (425) 690-3420
Fax: (425) 690-9420

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  • Individual
  • Female
  • Years of Experience 31
  • Family Medicine
  • Adult Medicine
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About GIA HEMMEN

This page provides the complete NPI Profile along with additional information for Gia Hemmen, a primary care provider established in Kent, Washington with a medical specialization in Family Medicine, focusing in adult medicine and more than 31 years of experience. She graduated from University Of Washington School Of Medicine in 1995. The healthcare provider is registered in the NPI registry with number 1205858123 assigned on July 2006. The practitioner's primary taxonomy code is 207QA0505X with license number MD00035217 (WA). The provider is registered as an individual and her NPI record was last updated 5 years ago.

NPI
1205858123
Provider Name
GIA L HEMMEN MD
Gender
Female
Entity Type
Individual
Location Address
24920 104TH AVE SE KENT, WA 98030
Location Phone
(425) 690-3420
Location Fax
(425) 690-9420
Mailing Address
3600 LIND AVE SW STE 100 RENTON, WA 98057
Mailing Phone
(425) 690-2715
Medical School Name
UNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduation Year
1995
Is Sole Proprietor?
No
Enumeration Date
07-24-2006
Last Update Date
05-12-2020
Code Navigator

A primary care provider (PCP) like Gia Hemmen sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc

Location Map

Secondary Locations

  • 451 Duvall Ave NE STE 100
    Renton, WA 98059
    (425) 656-5500

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Family Medicine Adult Medicine

Taxonomy Code
207QA0505X
Type
Allopathic & Osteopathic Physicians
License No.
MD00035217
License State
WA
Taxonomy Description
The National Uniform Claim Committee (NUCC) recommends code 207QA0505X not be used. Choose a more appropriate code.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207Q00000XAllopathic & Osteopathic Physicians

Family Medicine

MD00035217 (WA)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Premera Blue Cross Alaska One Gold - PPO
  • Premera Blue Cross Preferred Bronze 5800 HSA - PPO
  • Premera Blue Cross Preferred Bronze 6350 - PPO
  • Premera Blue Cross Preferred Gold 1500 - PPO
  • Premera Blue Cross Preferred Silver 4500 - PPO
  • Premera Blue Cross Standard Bronze II - PPO
  • Premera Blue Cross Standard Gold - PPO
  • Premera Blue Cross Standard Silver - PPO

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
8235343MEDICAID (05)WA 
G8891565OTHER (01)WAMEDICARE
1043248MEDICAID (05)WA 

Medicare Participation & PECOS Enrollment Status

Gia Hemmen is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Gia Hemmen is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 1951370527

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20040930000071

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Durable Medical Equipment

  • DME-Other DME (DE017N)

    Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips (HCPCS:A4253)

    12 DME suppliers used 36 Medicare Claims 61 Services Paid

  • DME-Medical/Surgical Supplies (DA000N)

    Lancets, per box of 100 (HCPCS:A4259)

    6 DME suppliers used 14 Medicare Claims 14 Services Paid

  • DME-Other DME (DE000N)

    Nebulizer, with compressor (HCPCS:E0570)

    2 DME suppliers used 11 Medicare Claims 11 Services Paid

  • DME-Other DME (DE017N)

    Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service (HCPCS:K0553)

    2 DME suppliers used 27 Medicare Claims 27 Services Paid

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

This service was performed 99 times for 99 patients

Established patient office or other outpatient visit, 20-29 minutes

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.

This service was performed 67 times for 62 patients

Established patient office or other outpatient visit, 30-39 minutes

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.

This service was performed 241 times for 131 patients

Established patient office or other outpatient visit, 40-54 minutes

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

This service was performed 11 times for 11 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $24.35 for a new patient copayment and $27.75 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 98030 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $97.43
  • Minimum New Patient Price $63.67
  • Maximum New Patient Price $189.37
  • Average New Patient Copayment $24.35
  • Minimum New Patient Copayment $15.91
  • Maximum New Patient Copayment $47.34

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $111
  • Minimum Established Patient Price $21.12
  • Maximum Established Patient Price $155
  • Average Established Patient Copayment $27.75
  • Minimum Established Patient Copayment $5.28
  • Maximum Established Patient Copayment $38.75

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Gia Hemmen is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
VALLEY MEDICAL CENTER400 S 43RD ST
RENTON, WA 98055
(425) 228-3450Acute Care Hospitals

Reviews for GIA L HEMMEN MD

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1205858123
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
22051651614
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 2 + 0 + 5 + 1 + 6 + 5 + 1 + 6 + 1 + 4 + 24 = 57
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
60 - 57 = 33

The NPI number 1205858123 is valid because the calculated check digit 3 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1376590026PUBLIC HOSPITAL DISTRICT #1 OF KING COUNTY
Organization
Family Medicine (Adult Medicine)24920 104TH AVE SE
KENT, WA 98030
(253) 395-2000
1053561134 PHUC T PHUNG MD
Individual
Family Medicine24920 104TH AVE SE
KENT, WA 98030
(253) 395-2000
1104831817 REBECCA C SIMONS MD
Individual
Family Medicine24920 104TH AVE SE
KENT, WA 98030
(253) 395-2000
1902005937DR. HEATHER L SALTON DPM
Individual
Podiatrist (Foot & Ankle Surgery)24920 104TH AVE SE
KENT, WA 98030
(253) 395-1985
1023056249DR. SHERI LYNN PETERSON-BUCKLEY MD
Individual
Family Medicine24920 104TH AVE SE
KENT, WA 98030
(253) 395-2000
1548285737 DANIEL C. HU M.D.
Individual
Internal Medicine (Nephrology)24920 104TH AVE SE
KENT, WA 98030
(253) 395-2000
1396935953 PARAMITA MUKHERJEE MD
Individual
Internal Medicine (Nephrology)24920 104TH AVE SE
KENT, WA 98030
(253) 395-2000
1093829632 HIEN PHAM MD
Individual
Internal Medicine (Nephrology)24920 104TH AVE SE
KENT, WA 98030
(425) 395-1944
1710412812 ERIN L BROWDER RD
Individual
Dietitian, Registered24920 104TH AVE SE
KENT, WA 98030
(425) 656-5377
1871547927 FRANK P S FUNG MD
Individual
Internal Medicine (Nephrology)24920 104TH AVE SE
KENT, WA 98030
(425) 690-3544
1841228426 STEPHEN M. DURCH MD
Individual
Family Medicine (Adult Medicine)24920 104TH AVE SE
KENT, WA 98030
(425) 690-3420
1043456684MISS MICHELLE LYNN RODGERS P.A.-C
Individual
Physician Assistant (Medical)24920 104TH AVE SE
KENT, WA 98030
(425) 690-3420
1356731681 NANETTE MARIE GUILD MSW
Individual
Social Worker (Clinical)24920 104TH AVE SE
KENT, WA 98030
(425) 690-7592
1942409388 ANUSHA IYER MD
Individual
Internal Medicine24920 104TH AVE SE
KENT, WA 98030
(425) 690-3420
1922565795MS. I PAN APRN
Individual
Nurse Practitioner24920 104TH AVE SE
KENT, WA 98030
(425) 690-3544
1669902839 AMANDA J ZORN MD
Individual
Family Medicine24920 104TH AVE SE
KENT, WA 98030
(425) 690-3420
1528592987 DAVID FELDMAN MD
Individual
Family Medicine24920 104TH AVE SE
KENT, WA 98030
(425) 630-3420
1316994288DR. ANDREW TRUEMAN BROCKENBROUGH MD
Individual
Internal Medicine (Nephrology)24920 104TH AVE SE
KENT, WA 98030
(425) 690-3544
1942231899 PHILIP Y. CHAN MD
Individual
Family Medicine (Adult Medicine)24920 104TH AVE SE
KENT, WA 98030
(425) 690-3420
1285183384MRS. SHERYL ALICE BLAKE MSW
Individual
Social Worker24920 104TH AVE SE
KENT, WA 98030
(425) 690-7592

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1205858123, enumerated in the NPI registry as an "individual" on July 24, 2006

The provider is located at 24920 104th Ave Se Kent, Wa 98030 and the phone number is (425) 690-3420

The provider's speciality is Family Medicine with taxonomy code 207QA0505X with a focus in Adult Medicine

The provider has more than 31 years of experience. She graduated from University Of Washington School Of Medicine in 1995.

The provider might be accepting Accepts: Premera Blue Cross Blue Shield of Alaska, Medicare. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

Medicare beneficiaries should expect a typical cost of $97.43 with an average copayment of $24.35 for new patient appointments. Established patients should expect a typical charge of $111 and an average copayment of 27.75. Please review your insurance plan or contact the provider directly to determine your specific costs.

The most common procedures or services performed by this practitioner are: Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit, Established patient office or other outpatient visit, 20-29 minutes, Established patient office or other outpatient visit, 30-39 minutes and Established patient office or other outpatient visit, 40-54 minutes.

The practitioner is affiliated to the following hospital(s): VALLEY MEDICAL CENTER. Hospital affiliations are identified through self-reporting data and service claims based on the place of service.

This NPI record was last updated on July 24, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.