NPPES file of Aug 9, 2026

Gwang-Yi Hwang, M.D.

Obstetrics & Gynecology Physician · Lakewood, CO

Gwang-Yi Hwang, M.D. is an obstetrics & gynecology physician with a practice address in Lakewood, Colorado, and NPI 1558505586, issued on Apr 21, 2009. Check the license (Colorado 47480, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558505586
Name
Gwang-Yi Hwang
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
47480 CO
Self-reported in NPPES; status is on the state search
Practice location
255 Union Blvd, Lakewood, CO 80228
Phone
(303) 763-5111
Enumerated
Apr 21, 2009
Record last updated
Apr 21, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(303) 763-9520
Medicare enrollment
Enrolled (PECOS I20090921000354); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 255 Union Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Brian Brada, D.D.S.Prosthodontics1205877966
  2. Lauren Chandler, PT, DPTPhysical Therapist1407169402
  3. Staci Cost, PTPhysical Therapist1659489276
  4. Chris Cumsille, BOCPDOrthotist1902204357
  5. Jennifer Grube, M.D.Obstetrics & Gynecology Physician1356440846
  6. Randall Hall, DDSGeneral Practice Dentistry1083612055

Verify Gwang-Yi Hwang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 47480
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Colorado license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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12% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024

185 Medicare Part D claims for 65 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Gwang-Yi Hwang185
  2. Specialty average165

Most prescribed

  1. Estradiol57 claims
  2. Progesterone35 claims
  3. Estradiol (Twice Weekly)27 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $342.18

15 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gwang-Yi Hwang$342.18
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. OB-Gyn AffiliatesLakewood, CO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gwang-Yi Hwang among 906 obstetrics & gynecology physician records in Colorado

Gwang-Yi Hwang, M.D. is one of 906 obstetrics & gynecology physician records with a practice address in Colorado. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 65% of them.

  • NPI issued2009 · 65% of these records are older, 32% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2009 · median 2008 among the 504 with a school on file
  • Record last updated2009 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Colorado

There are 906 obstetrics & gynecology physician records in Colorado.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Matthew Davoudzadeh, MDLakewood, CO 802281477181436
  2. Jennifer Grube, M.D.Lakewood, CO 802281356440846
  3. Michael Johnson, M.D.Lakewood, CO 802281821197476
  4. Douglas Kirkpatrick, M.D.Lakewood, CO 802281871635227
  5. Kelle Oberle, MDLakewood, CO 802281790831311
  6. Doreen Pearce, MDLakewood, CO 802281194386607
  7. Shivani Vasudeva, DOLakewood, CO 802281760011506
  8. Gail Womack, M.D.Lakewood, CO 802281982703534

Common questions

What is Gwang-Yi Hwang, M.D.'s NPI number?

Gwang-Yi Hwang, M.D.'s National Provider Identifier (NPI) is 1558505586, issued on Apr 21, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Gwang-Yi Hwang, M.D. located?

The NPPES record lists a practice address at 255 Union Blvd, Lakewood, CO, 80228. Phone: (303) 763-5111. Providers update this record themselves, so call before visiting.

How can I verify Gwang-Yi Hwang, M.D.'s license?

NPPES lists Colorado license number 47480, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gwang-Yi Hwang, M.D. prescribe under Medicare Part D?

In 2024, Gwang-Yi Hwang, M.D. had 185 Medicare Part D claims for 65 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.