NPPES file of Aug 9, 2026

Erica Kristen Ridley, M.D.

Allergy & Immunology Physician · Livonia, MI

Erica Kristen Ridley, M.D. is an allergy & immunology physician with a practice address in Livonia, Michigan, and NPI 1861810954, issued on Apr 4, 2014. Check the license (Michigan 4301500514, as entered in NPPES) on the Michigan Board of Medicine (LARA); 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
1861810954
Name
Erica Kristen Ridley
Credential
M.D.
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License numbers
4301500514 MI
4301105077 MI
Self-reported in NPPES; status is on the state search
Practice location
16801 Newburgh RD Ste 106, Livonia, MI 48154
Phone
(734) 591-6660
Enumerated
Apr 4, 2014
Record last updated
Jul 29, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(734) 744-8514
Medicaid ID
CV0022635 MI
Medicare enrollment
Enrolled (PECOS I20190905003513); accepts Medicare assignment
Medical or professional school
Michigan State University College Of Human Medicine, 2014
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 16801 Newburgh RD Ste 106

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

  1. Pamela Steinberg, PACPhysician Assistant1508820150

Verify Erica Kristen Ridley in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301500514
    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 Michigan 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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9% fewer Medicare Part D claims than the average allergy & immunology physician in 2024

678 Medicare Part D claims for 122 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.

  1. Erica Ridley678
  2. Specialty average741

Most prescribed

  1. Azelastine Hcl112 claims
  2. Montelukast Sodium71 claims
  3. Albuterol Sulfate Hfa45 claims
  4. Levocetirizine Dihydrochloride43 claims
  5. Trelegy Ellipta41 claims
  6. Fluticasone Propionate35 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: $104.71

2 payments; by number, the most common kind was food and beverage; the largest payer was Aerin Medical Inc. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Erica Ridley$104.71
  2. Specialty average$8,321.81

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. Henry Ford Health SystemDetroit, MI

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

Erica Kristen Ridley among 137 allergy & immunology physician records in Michigan

Erica Kristen Ridley, M.D. is one of 137 allergy & immunology physician records with a practice address in Michigan. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 83% of them.

  • NPI issued2014 · 83% of these records are older, 15% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2014 · median 2001 among the 98 with a school on file
  • Record last updated2020 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology Physician providers in Michigan

There are 137 allergy & immunology physician records in Michigan.

The 8 allergy & immunology physician records with the nearest ZIP codes

  1. Jason Paris, M.D.Livonia, MI 481541376502096
  2. Dale Stone, DOLivonia, MI 481521699739243
  3. Cem Akin, MDNorthville, MI 481681629167549
  4. Christine Holland, MDNorthville, MI 481681841389772
  5. Keerthi Karamched, M.D.Northville, MI 481681144669391
  6. Ashraf Uzzaman, M.D.Saline, MI 481761568624773
  7. Roula Daher, MDDearborn, MI 481241689938789
  8. Sonia Thomas, MDDearborn, MI 481241043650732

Common questions

What is Erica Kristen Ridley, M.D.'s NPI number?

Erica Kristen Ridley, M.D.'s National Provider Identifier (NPI) is 1861810954, issued on Apr 4, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Erica Kristen Ridley, M.D. located?

The NPPES record lists a practice address at 16801 Newburgh RD Ste 106, Livonia, MI, 48154. Phone: (734) 591-6660. Providers update this record themselves, so call before visiting.

How can I verify Erica Kristen Ridley, M.D.'s license?

NPPES lists Michigan license number 4301500514, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Erica Kristen Ridley, M.D. prescribe under Medicare Part D?

In 2024, Erica Kristen Ridley, M.D. had 678 Medicare Part D claims for 122 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.