NPPES file of Aug 9, 2026

Melissa Ann Kainer Erwin, M.D.

Dermatology Physician · El Campo, TX

Melissa Ann Kainer Erwin, M.D. is a dermatology physician with a practice address in El Campo, Texas, and NPI 1649288846, issued on Aug 3, 2006. Check the license (Texas L7946, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649288846
Name
Melissa Ann Kainer Erwin
Credential
M.D.
Primary taxonomy
Dermatology Physician 207N00000X
License number
L7946 TX
Self-reported in NPPES; status is on the state search
Practice location
203 Sandy Corner RD, El Campo, TX 77437
Phone
(979) 543-9933
Enumerated
Aug 3, 2006
Record last updated
Apr 22, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(979) 543-9959
Medicare enrollment
Enrolled (PECOS I20040803000548); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At Houston, 2000
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 203 Sandy Corner RD

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

  1. Lindsey Crolley, PA-CMedical Physician Assistant1518419399
  2. Karissa Priesmeyer, APRN-CNPNurse Practitioner1740906346

Verify Melissa Ann Kainer Erwin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license L7946
    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 Texas license search

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2.3 times the Medicare Part D claims of the average dermatology physician in 2024

1,863 Medicare Part D claims for 691 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. Melissa Kainer Erwin1,863
  2. Specialty average797

Most prescribed

  1. Doxycycline Hyclate325 claims
  2. Triamcinolone Acetonide306 claims
  3. Clobetasol Propionate200 claims
  4. Ketoconazole90 claims
  5. Betamethasone Dipropionate84 claims
  6. Minoxidil75 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score100.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $1,091.34

74 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Melissa Kainer Erwin$1,091.34
  2. Specialty average$8,544.61

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. Melissa A Kainer Erwin MD PAEl Campo, TX

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

Melissa Ann Kainer Erwin among 1,172 dermatology physician records in Texas

Melissa Ann Kainer Erwin, M.D. is one of 1,172 dermatology physician records with a practice address in Texas. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 63% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2000 · median 2008 among the 926 with a school on file
  • Record last updated2015 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3 dermatology physician records list a practice address in El Campo

They are 3 of the 126 NPPES records with a practice address in El Campo, and 1,172 dermatology physician records in Texas.

The 8 dermatology physician records with the nearest ZIP codes

  1. Angela Abouassi, MDEl Campo, TX 774371083109532
  2. Ronald Cochran, MDEl Campo, TX 774371407899875
  3. Tara Akunna, MDCypress, TX 774331295231157
  4. Lauren Campbell, M.D.Cypress, TX 774331447406400
  5. Selina Hamill, M.D.Cypress, TX 774331124462577
  6. Lisa Hitchins, M.D.Cypress, TX 774331740285360
  7. Sarah Kesaria, MDFulshear, TX 774411104555226
  8. Yasmin Khalfe, MDFulshear, TX 774411740868314

Common questions

What is Melissa Ann Kainer Erwin, M.D.'s NPI number?

Melissa Ann Kainer Erwin, M.D.'s National Provider Identifier (NPI) is 1649288846, issued on Aug 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Melissa Ann Kainer Erwin, M.D. located?

The NPPES record lists a practice address at 203 Sandy Corner RD, El Campo, TX, 77437. Phone: (979) 543-9933. Providers update this record themselves, so call before visiting.

How can I verify Melissa Ann Kainer Erwin, M.D.'s license?

NPPES lists Texas license number L7946, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Melissa Ann Kainer Erwin, M.D. prescribe under Medicare Part D?

In 2024, Melissa Ann Kainer Erwin, M.D. had 1,863 Medicare Part D claims for 691 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.

What is Melissa Ann Kainer Erwin, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.