DR. GREGORY STERLING ALLEN DDS
NPI 1326112160
Dentist - General Practice in Princess Anne, MD

Q: What is Gregory Allen's NPI number?

The NPI number for Gregory Allen is 1326112160. It was assigned to this individual provider in the NPPES registry on November 20, 2006.

Q: What is Gregory Allen's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Q: Is Gregory Allen enrolled in Medicare?

No. Gregory Allen has opted out of Medicare through January 12, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Q: When was this NPI record last updated?

The NPPES record for Gregory Allen was last updated on May 6, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since November 20, 2006Opted out of Medicare · through Jan 12, 2028

12165 ELM ST, PRINCESS ANNE, MD 21853(410) 651-5151(410) 651-4256 Get Directions Write a Review

NPPES record last updated: May 6, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: May 6, 2026, Jan 27, 2020 (2 updates tracked since 2020).

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About Dr. Gregory Sterling Allen Dds NPPES

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

DR. GREGORY STERLING ALLEN DDS (NPI 1326112160) is an individual general practice provider in Princess Anne, Maryland, licensed in Maryland (12030) and active in the NPI registry since November 2006. He has opted out of Medicare through January 12, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1326112160

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. GREGORY STERLING ALLENCredential: DDS

Location Address12165 ELM STPrincess Anne, MD 21853-1358

Mailing AddressPo Box 1978Salisbury, MD 21802-1978 · (410) 749-1015 · Fax (410) 749-0654

Phone(410) 651-5151

Fax(410) 651-4256

Sole ProprietorNo

Enumeration DateNovember 20, 2006

Last NPPES UpdateMay 6, 20262 updates tracked since enumeration

NPPES CertifiedMay 6, 2026

✔ NPI 1326112160 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in MD · 12030

Definition

A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

Also ListedDentistTaxonomy 122300000X · License 12030 (MD)

12165 ELM ST, Princess Anne, MD 21853

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Alabama, Florida Combined Life and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

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Opted out of Medicare

Dr. Gregory Sterling Allen Dds has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from January 12, 2016 through January 12, 2028.

Opt-Out Effective DateJanuary 12, 2016

Opt-Out In Effect ThroughJanuary 12, 2028Opt-out affidavits renew automatically every two years unless cancelled

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21853 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

$89.75 typical visit price

range $57.99 – $175.57

Typical copayment $22.43 (range $14.49 – $43.89)

Most-billed visit code 99203

Established Patient

$72.23 typical visit price

range $18.66 – $143.02

Typical copayment $18.05 (range $4.66 – $35.75)

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.

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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.

MISS ROSHNI MINHAS DDS

Dentist (Pediatric Dentistry)