DR. SARA ELIZABETH MAZZONI MD
NPI 1235285842
Obstetrics & Gynecology in Seattle, WA

NPI Status: Active since January 26, 2007

Contact Information

325 9TH AVE
SEATTLE, WA
ZIP 98104
Phone: (206) 520-5000

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  • Individual
  • Female
  • Years of Experience 21
  • Obstetrics & Gynecology
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About SARA MAZZONI

This page provides the complete NPI Profile along with additional information for Sara Mazzoni, a women's health care provider established in Seattle, Washington with a medical specialization in Obstetrics & Gynecology and more than 21 years of experience. She graduated from University Of Washington School Of Medicine in 2005. The healthcare provider is registered in the NPI registry with number 1235285842 assigned on January 2007. The practitioner's primary taxonomy code is 207V00000X with license number MD61051383 (WA). The provider is registered as an individual and her NPI record was last updated 3 years ago.

NPI
1235285842
Provider Name
DR. SARA ELIZABETH MAZZONI MD
Gender
Female
Entity Type
Individual
Location Address
325 9TH AVE SEATTLE, WA 98104
Location Phone
(206) 520-5000
Mailing Address
PO BOX 50095 SEATTLE, WA 98145
Mailing Phone
(206) 520-5700
Medical School Name
UNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduation Year
2005
Is Sole Proprietor?
No
Enumeration Date
01-26-2007
Last Update Date
04-25-2022
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Women's health care providers like Sara Mazzoni treat and diagnose diseases and conditions that affect a woman's physical and emotional health. Women's health professionals come from a variety of different specialties, including obstetrician/gynecologists, general surgeons, perinatologists, physician assistants, nurse practitioners or nurse midwives. A women's health provider might help you with family planning, breast care, pregnancy and child birth, osteoporosis, menopause, heart disease, etc.

Location Map

Secondary Locations

  • 17722 Talbot Rd S
    Renton, WA 98055
    (425) 690-3479

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

Obstetrics & Gynecology

Taxonomy Code
207V00000X
Type
Allopathic & Osteopathic Physicians
License No.
MD61051383
License State
WA
Taxonomy Description
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

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)
1207VM0101XAllopathic & Osteopathic Physicians

Obstetrics & Gynecology
Maternal & Fetal Medicine

MD61051383 (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
1235285842MEDICAID (05)WA 
2157106MEDICAID (05)WA 

Medicare Participation & PECOS Enrollment Status

Sara Mazzoni 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.

Sara Mazzoni 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: 941355200

    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: I20200709000914

    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

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $35.94 for a new patient copayment and $19.68 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 98104 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $143.76
  • Minimum New Patient Price $63.67
  • Maximum New Patient Price $189.37
  • Average New Patient Copayment $35.94
  • 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 99213

  • Average Established Patient Price $78.74
  • Minimum Established Patient Price $21.12
  • Maximum Established Patient Price $155
  • Average Established Patient Copayment $19.68
  • 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. Sara Mazzoni is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
HARBORVIEW MEDICAL CENTER325 9TH AVENUE
SEATTLE, WA 98104
(206) 731-3000Acute Care Hospitals

Reviews for DR. SARA ELIZABETH MAZZONI 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.
1235285842
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2265481088
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 2 + 6 + 5 + 4 + 8 + 1 + 0 + 8 + 8 + 24 = 68
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
70 - 68 = 22

The NPI number 1235285842 is valid because the calculated check digit 2 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
1124027578DR. HEATHER RAE FERGUSON PHARMD
Individual
Pharmacist325 9TH AVE BOX 359885
SEATTLE, WA 98104
(206) 731-3220
1841283512 ELIZABETH BOROCK M.D.
Individual
Emergency Medicine325 9TH AVE
SEATTLE, WA 98104
(206) 420-8979
1215922638 SUZINNE PAK GORSTEIN MD PHD MPH
Individual
Pediatrics (Adolescent Medicine)325 9TH AVE BOX 359774
SEATTLE, WA 98104
(206) 744-9512
1013903780 MICHAEL R KELLY MD
Individual
Internal Medicine (Nephrology)325 9TH AVE
SEATTLE, WA 98104
(206) 744-5939
1730176058MR. STEVEN M RIDDLE RPH
Individual
Pharmacist (Pharmacotherapy)325 9TH AVE HMC PHARMACY MAILSTOP 359912
SEATTLE, WA 98104
(206) 731-3000
1265421945DR. JENNIE MAO M.D.
Individual
Obstetrics & Gynecology325 9TH AVE
SEATTLE, WA 98104
(206) 731-6291
1083604078 NAM TRAN M.D.
Individual
Surgery (Vascular Surgery)325 9TH AVE DIVISION OF VASCULAR SURGERY
SEATTLE, WA 98104
(206) 731-8041
1306837232DR. JANE CAROL BALLANTYNE MD
Individual
Anesthesiology (Pain Medicine)325 9TH AVE
SEATTLE, WA 98104
(206) 520-5358
1114901972MRS. LILLIAN JANE SJONG ARNP MN
Individual
Nurse Practitioner325 9TH AVE
SEATTLE, WA 98104
(206) 744-9378
1649256090MR. STEPHEN SUI R.PH., B.SC.(PHARM)
Individual
Pharmacist325 9TH AVE
SEATTLE, WA 98104
(206) 731-7967
1902884430DR. JEFFREY D. ROBINSON MD
Individual
Radiology (Diagnostic Radiology)325 9TH AVE
SEATTLE, WA 98104
(206) 731-3000
1104896950 IVY LIM PHARM.D.
Individual
Pharmacist325 9TH AVE
SEATTLE, WA 98104
(206) 731-5151
1487628434 HEEMUN KWOK M.D.
Individual
Emergency Medicine325 9TH AVE
SEATTLE, WA 98104
(206) 744-9888
1437125333 CYNTHIA BRENNAN PHARMD, MHA
Individual
Pharmacist325 9TH AVE
SEATTLE, WA 98104
(206) 731-3181
1528035755DR. BRADLEY WILLIAM KOSEL PHARMD
Individual
Pharmacist325 9TH AVE BOX #359930
SEATTLE, WA 98104
(206) 731-5151
1164491247DR. KATIE VU LAI PHARM.D.
Individual
Pharmacist (Pharmacotherapy)325 9TH AVE
SEATTLE, WA 98104
(206) 731-5946
1942269535 GRETA M SWENEY
Individual
Pharmacist325 9TH AVE
SEATTLE, WA 98104
(206) 989-5332
1508826710 JOHANNE ST LAURENT LEWIN ARNP
Individual
Nurse Practitioner (Family)325 9TH AVE
SEATTLE, WA 98104
(206) 744-3000
1649231416MR. DAVID M HOLT ARNP
Individual
Nurse Practitioner (Family)325 9TH AVE
SEATTLE, WA 98104
(206) 731-4115
1891758827DR. TIFFANY NICOLE ERICKSON PHARMD, BCPS
Individual
Pharmacist (Pharmacotherapy)325 9TH AVE BOX 359912
SEATTLE, WA 98104
(206) 731-8120

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1235285842, enumerated in the NPI registry as an "individual" on January 26, 2007

The provider is located at 325 9th Ave Seattle, Wa 98104 and the phone number is (206) 520-5000

The provider's speciality is Obstetrics & Gynecology with taxonomy code 207V00000X

The provider has more than 21 years of experience. She graduated from University Of Washington School Of Medicine in 2005.

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 $143.76 with an average copayment of $35.94 for new patient appointments. Established patients should expect a typical charge of $78.74 and an average copayment of 19.68. Please review your insurance plan or contact the provider directly to determine your specific costs.

The practitioner is affiliated to the following hospital(s): HARBORVIEW 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 January 26, 2007. 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.