DR. MARIA ANDREEVNA HWANG DO
NPI 1235668849
Obstetrics & Gynecology in Santa Maria, CA

Active since June 07, 2017PECOS EnrolledAccepts Medicare Assignment
96.5/100
CMS Quality Rating
220 S PALISADE DR STE 203, SANTA MARIA, CA 93454(805) 354-7101(805) 354-7102 Get Directions Write a Review

NPPES record last updated: May 9, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 9, 2025, Jan 8, 2025, Nov 2, 2023 and 4 more (7 updates tracked since 2017).

About Dr. Maria Andreevna Hwang Do NPPES

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

DR. MARIA ANDREEVNA HWANG DO (NPI 1235668849) is an individual obstetrics & gynecology provider in Santa Maria, California, licensed in California (20A18799) and active in the NPI registry since June 2017. She is enrolled in Medicare PECOS and is a graduate of West Virginia School Of Osteopathic Medicine (2017).

NPPES Registry Identity

NPI1235668849
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameDR. MARIA ANDREEVNA HWANGCredential: DO
Location Address220 S PALISADE DR STE 203Santa Maria, CA 93454-8903
Mailing Address210 S Palisade Dr Ste 101Santa Maria, CA 93454-5932 · (805) 922-0481 · Fax (805) 925-5261
Fax(805) 354-7102
Sole ProprietorNo
Medical School CMSWest Virginia School Of Osteopathic MedicineGraduated 2017
Enumeration DateJune 7, 2017
Last NPPES UpdateMay 9, 20257 updates tracked since enumeration
NPPES CertifiedMay 9, 2025
NPI 1235668849 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Licenses Licensed in CA · 20A18799 Licensed in PA · OT017701
Definition
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.
220 S PALISADE DR STE 203, Santa Maria, CA 93454

Other Names 1

Former Name (1)Dr. Maria Andreevna Kolmakova Do

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Maria Andreevna Hwang Do 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 ID6709151145
PECOS Enrollment IDI20210721001962
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.

Areas of Expertise CMS Part B claims 3

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.

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.
34 services25 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
16 services16 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.
16 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93454 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
$139.99 typical visit price
range $62.01 – $184.40
Typical copayment $34.99 (range $15.50 – $46.10)
Most-billed visit code 99204
Established Patient
$76.76 typical visit price
range $20.60 – $151.20
Typical copayment $19.19 (range $5.15 – $37.80)
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.

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.

96.5/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality80.34
Promoting Interoperability100
Improvement Activities40

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.

Obstetrics & Gynecology
220 S PALISADE DR STE 203
SANTA MARIA, CA 93454
Pediatrics
220 S PALISADE DR STE 203
SANTA MARIA, CA 93454
Advanced Practice Midwife
220 S PALISADE DR STE 203
SANTA MARIA, CA 93454
Obstetrics & Gynecology
220 S PALISADE DR STE 203
SANTA MARIA, CA 93454
Social Worker
220 S PALISADE DR STE 203
SANTA MARIA, CA 93454
Obstetrics & Gynecology
220 S PALISADE DR STE 203
SANTA MARIA, CA 93454
Obstetrics & Gynecology
220 S PALISADE DR STE 203
SANTA MARIA, CA 93454
Social Worker (Clinical)
220 S PALISADE DR STE 203
SANTA MARIA, CA 93454

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 Maria Hwang's NPI number?

The NPI number for Maria Hwang is 1235668849. It was assigned to this individual provider in the NPPES registry on June 7, 2017. The provider is also known as Dr. Maria Andreevna Kolmakova Do.

Where is Maria Hwang located?

Maria Hwang practices at 220 S Palisade Dr Ste 203, Santa Maria, CA 93454. The listed phone number is (805) 354-7101.

What is Maria Hwang's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Maria Hwang enrolled in Medicare?

Yes. Maria Hwang 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.

When was this NPI record last updated?

The NPPES record for Maria Hwang was last updated on May 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.