ANNA B SIHON LCSW
NPI 1417012659
Social Worker - Clinical in Greenwood Village, CO

Active since December 27, 2006PECOS EnrolledAccepts Medicare Assignment
97.58/100
CMS Quality Rating
9620 E ARAPAHOE RD, GREENWOOD VILLAGE, CO 80112(303) 835-9915(303) 320-5399 Get Directions Write a Review

NPPES record last updated: July 9, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 9, 2025, Dec 4, 2020, Feb 26, 2020 and 3 more (6 updates tracked since 2016).

About Anna B Sihon Lcsw NPPES

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

ANNA B SIHON LCSW (NPI 1417012659) is an individual clinical provider in Greenwood Village, Colorado, licensed in Virginia (0904011370) and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Other (2003).

NPPES Registry Identity

NPI1417012659
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameANNA B SIHONCredential: LCSW
Location Address9620 E ARAPAHOE RDGreenwood Village, CO 80112-3703
Mailing Address2695 Rocky Mountain Ave Ste 150Loveland, CO 80538-9071 · (970) 624-4128
Fax(303) 320-5399
Sole ProprietorNo
Medical School CMSOtherGraduated 2003
Enumeration DateDecember 27, 2006
Last NPPES UpdateJuly 9, 20256 updates tracked since enumeration
NPPES CertifiedJuly 9, 2025
✔ NPI 1417012659 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Licenses✔ Licensed in VA · 0904011370✔ Licensed in CO · 1474
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
9620 E ARAPAHOE RD, Greenwood Village, CO 80112

Other Names 1

Former Name (1)Anna B Richards Msw

Secondary Practice Locations 3

Location 14809 Argonne St Ste 100Denver, CO 80249-6835 · Phone (303) 344-8700
Location 29695 S Yosemite St Ste 224Lone Tree, CO 80124-2890 · Phone (303) 265-3970 · Fax (303) 265-3971
Location 34601 Corbett DrFort Collins, CO 80528-9579 · Phone (970) 207-4857 · Fax (970) 207-4885

Other Identifiers 1

Medicaid9000121536CO

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Anna B Sihon Lcsw is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4880857473
PECOS Enrollment IDI20120517000530
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Anna Sihon reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

General Practice
2695 ROCKY MOUNTAIN AVE, SUITE 150
Loveland, CO 80538
  • Reassigned Medicare billing, Colorado enrollment
  • 2,596 clinicians in this Medicare group
General Acute Care Hospital
1024 S LEMAY AVE
Fort Collins, CO 80524
  • Reassigned Medicare billing, Colorado enrollment
  • 162 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80112 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
$0.00 typical visit price
range $58.06 – $174.82
Typical copayment $0.00 (range $14.51 – $43.70)
Most-billed visit code NA
Established Patient
$72.20 typical visit price
range $18.88 – $142.79
Typical copayment $18.05 (range $4.72 – $35.69)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.58/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality86.53
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Family Medicine
9620 E ARAPAHOE RD
GREENWOOD VILLAGE, CO 80112
Nurse Practitioner (Family)
9620 E ARAPAHOE RD
GREENWOOD VILLAGE, CO 80112
Nurse Practitioner
9620 E ARAPAHOE RD
GREENWOOD VILLAGE, CO 80112
Clinic/Center (Primary Care)
9620 E ARAPAHOE RD
GREENWOOD VILLAGE, CO 80112
Nurse Practitioner (Family)
9620 E ARAPAHOE RD
GREENWOOD VILLAGE, CO 80112
Nurse Practitioner (Family)
9620 E ARAPAHOE RD
GREENWOOD VILLAGE, CO 80112
Family Medicine
9620 E ARAPAHOE RD
GREENWOOD VILLAGE, CO 80112
Clinic/Center (Health Service)
9620 E ARAPAHOE RD
GREENWOOD VILLAGE, CO 80112

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 Anna Sihon's NPI number?

The NPI number for Anna Sihon is 1417012659. It was assigned to this individual provider in the NPPES registry on December 27, 2006. The provider is also known as Anna B Richards Msw.

Where is Anna Sihon located?

Anna Sihon practices at 9620 E Arapahoe Rd, Greenwood Village, CO 80112. The listed phone number is (303) 835-9915.

What is Anna Sihon's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Anna Sihon enrolled in Medicare?

Yes. Anna Sihon is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Anna Sihon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Anna Sihon reassigns Medicare benefits to 2 organizations: Poudre Valley Medical Group, LLC (Loveland, CO) and Poudre Valley Health Care Inc. (Fort Collins, CO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Anna Sihon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Anna Sihon accept?

Health plans from Oscar Insurance Company and Select Health list Anna Sihon as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Anna Sihon was last updated on July 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.