MR. AARON GREENSTEIN MD
NPI 1154856425
Psychiatry & Neurology - Geriatric Psychiatry in Denver, CO

Q: What is Aaron Greenstein's NPI number?

The NPI number for Aaron Greenstein is 1154856425. It was assigned to this individual provider in the NPPES registry on April 25, 2017.

Q: What is Aaron Greenstein's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Geriatric Psychiatry, with taxonomy code 2084P0805X.

Q: Is Aaron Greenstein enrolled in Medicare?

No. Aaron Greenstein has opted out of Medicare through April 1, 2027. 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 Aaron Greenstein was last updated on October 4, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.

Active since April 25, 2017Opted out of Medicare · through Apr 1, 2027

162 ADAMS ST. STE. 201, DENVER, CO 80206(303) 642-6072 Get Directions Write a Review

NPPES record last updated: October 4, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Oct 4, 2022, Sep 30, 2022, Nov 1, 2018 and 1 more (4 updates tracked since 2017).

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About Mr. Aaron Greenstein Md NPPES

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

MR. AARON GREENSTEIN MD (NPI 1154856425) is an individual geriatric psychiatry provider in Denver, Colorado, licensed in Colorado (0069594) and active in the NPI registry since April 2017. He has opted out of Medicare through April 1, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1154856425

Entity TypeIndividualMale

Primary Taxonomy2084P0805X

Provider Legal NameMR. AARON GREENSTEINCredential: MD

Location Address162 ADAMS ST. STE. 201Denver, CO 80206

Mailing Address162 Adams St. Ste. 201Denver, CO 80206 · (303) 642-6072

Phone(303) 642-6072

Sole ProprietorYes

Enumeration DateApril 25, 2017

Last NPPES UpdateOctober 4, 20224 updates tracked since enumeration

NPPES CertifiedOctober 4, 2022

✔ NPI 1154856425 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · Geriatric PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0805X

License✔ Licensed in CO · 0069594

Definition

Geriatric Psychiatry is a subspecialty with psychiatric expertise in prevention, evaluation, diagnosis and treatment of mental and emotional disorders in the elderly, and improvement of psychiatric care for healthy and ill elderly patients.

Also ListedPsychiatry & Neurology · PsychiatryTaxonomy 2084P0800X · License 0069594 (CO)

162 ADAMS ST. STE. 201, Denver, CO 80206

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Mr. Aaron Greenstein Md 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 April 1, 2023 through April 1, 2027.

Opt-Out Effective DateApril 1, 2023

Opt-Out In Effect ThroughApril 1, 2027Opt-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 80206 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

$174.82 typical visit price

range $58.06 – $174.82

Typical copayment $43.70 (range $14.51 – $43.70)

Most-billed visit code 99205

Established Patient

$102.03 typical visit price

range $18.88 – $142.79

Typical copayment $25.50 (range $4.72 – $35.69)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Aaron Greenstein's NPI number?

The NPI number for Aaron Greenstein is 1154856425. It was assigned to this individual provider in the NPPES registry on April 25, 2017.

Where is Aaron Greenstein located?

Aaron Greenstein practices at 162 Adams St. Ste. 201, Denver, CO 80206. The listed phone number is (303) 642-6072.

What is Aaron Greenstein's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Geriatric Psychiatry, with taxonomy code 2084P0805X.

Is Aaron Greenstein enrolled in Medicare?

No. Aaron Greenstein has opted out of Medicare through April 1, 2027. 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.

When was this NPI record last updated?

The NPPES record for Aaron Greenstein was last updated on October 4, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.