GREGORY DAHLQUIST MD
NPI 1558362467
Family Medicine - Hospice and Palliative Medicine in Pomona, CA

Q: What is Gregory Dahlquist's NPI number?

The NPI number for Gregory Dahlquist is 1558362467. It was assigned to this individual provider in the NPPES registry on August 2, 2005.

Q: What is Gregory Dahlquist's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Hospice and Palliative Medicine, with taxonomy code 207QH0002X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Dahlquist was last updated on March 7, 2023. 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 August 02, 2005PECOS EnrolledAccepts Medicare Assignment

1770 N ORANGE GROVE AVE, SUTIE 101, POMONA, CA 91767(909) 469-9494(909) 628-6087 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Gregory Dahlquist Md NPPES

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

GREGORY DAHLQUIST MD (NPI 1558362467) is an individual hospice and palliative medicine provider in Pomona, California, licensed in California (G56074) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1984).

NPPES Registry Identity

NPI1558362467

Entity TypeIndividualMale

Primary Taxonomy207QH0002X

Provider Legal NameGREGORY DAHLQUISTCredential: MD

Location Address1770 N ORANGE GROVE AVE, SUTIE 101Pomona, CA 91767-3027

Mailing Address1770 N Orange Grove Ave, Sutie 101Pomona, CA 91767-3027 · (909) 469-9494 · Fax (909) 628-6087

Phone(909) 469-9494

Fax(909) 628-6087

Sole ProprietorNo

Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 1984

Enumeration DateAugust 2, 2005

Last NPPES UpdateMarch 7, 2023

✔ NPI 1558362467 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily Medicine · Hospice and Palliative MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207QH0002X

License✔ Licensed in CA · G56074

Definition

A family medicine physician with special knowledge and skills to prevent and relieve the suffering experienced by patients with life-limiting illnesses. This specialist works with an interdisciplinary hospice or palliative care team to maximize quality of life while addressing physical, psychological, social and spiritual needs of both patient and family throughout the course of the disease, through the dying process, and beyond for the family. This specialist has expertise in the assessment of patients with advanced disease; the relief of distressing symptoms; the coordination of interdisciplinary patient and family-centered care in diverse venues; the use of specialized care systems including hospice; the management of the imminently dying patient; and legal and ethical decision making in end-of-life care.

1770 N ORANGE GROVE AVE, Pomona, CA 91767

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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

Gregory Dahlquist Md 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 ID2860529674

PECOS Enrollment IDI20100819000375

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 Reassignment

Medicare enrollment records show Gregory Dahlquist reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

San Bernardino Mountains Community Hospital District

36 mi

Rural Health

29099 HOSPITAL ROAD, #200
Lake Arrowhead, CA 92352

Reassigned Medicare billing, California enrollment
Also billed through NPI 1245380799 (California)
21 clinicians in this Medicare group

NPI 1528172541 (909) 336-9715

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 91767 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

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

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.

Other Providers at the Same Location NPPES 19

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

ODILIA FE ANTHONY

Student in an Organized Health Care Education/Training Program

1770 N ORANGE GROVE AVE, 101
POMONA, CA 91767

Los Angeles County (909) 469-9494

FEVEN WOLDAY MD

Family Medicine

1770 N ORANGE GROVE AVE, SUITE 101
POMONA, CA 91767

Los Angeles County (909) 469-9494

MARYAM A RAHIMI MD

Family Medicine

1770 N ORANGE GROVE AVE, # 101
POMONA, CA 91767

Los Angeles County (909) 469-9494

GEVORK MOSESI

Student in an Organized Health Care Education/Training Program

1770 N ORANGE GROVE AVE, # 101
POMONA, CA 91767

Los Angeles County (909) 469-9494

AMEERAH ANN-SHABAN SHALIKAR M.D.

Family Medicine

1770 N ORANGE GROVE AVE, SUITE 101
POMONA, CA 91767

Los Angeles County (909) 469-9494

WILBERT PEREZ VELEZ MD

Family Medicine

1770 N ORANGE GROVE AVE, 101
POMONA, CA 91767

Los Angeles County (909) 469-9494

POPAK FIROOZNAM

Family Medicine

1770 N ORANGE GROVE AVE, SUITE 101
POMONA, CA 91767

Los Angeles County (909) 469-9494

HENRY LAM TRAN

Family Medicine

1770 N ORANGE GROVE AVE, SUITE 101
POMONA, CA 91767

Los Angeles County (909) 469-9494

LYNNE MARIE DIAMOND MD

Family Medicine (Hospice and Palliative Medicine)

1770 N ORANGE GROVE AVE, SUITE 101
POMONA, CA 91767

Los Angeles County (909) 469-9494

MS. CLAUDIA PENA MD

Family Medicine

1770 N ORANGE GROVE AVE, SUITE 101
POMONA, CA 91767

Los Angeles County (909) 469-9494

DANA SALVADOR MD

Student in an Organized Health Care Education/Training Program

1770 N ORANGE GROVE AVE, SUITE 101
POMONA, CA 91767

Los Angeles County (909) 469-9494

MS. ANNA F PAVLOV PH.D

Psychologist (Family)

1770 N ORANGE GROVE AVE, #101
POMONA, CA 91767

Los Angeles County (909) 469-9494

HEATHER COFFIN

Student in an Organized Health Care Education/Training Program

1770 N ORANGE GROVE AVE, SUITE 101
POMONA, CA 91767

Los Angeles County (909) 469-9494

MARILYN MAJEO DEGUZMAN DO

Family Medicine

1770 N ORANGE GROVE AVE, # 101
POMONA, CA 91767

Los Angeles County (909) 469-9494

GISELLA VICTORIA OLIVARES D.O.

Family Medicine

1770 N ORANGE GROVE AVE
POMONA, CA 91767

Los Angeles County (909) 469-9494

JIAO XUE MD

Family Medicine

1770 N ORANGE GROVE AVE, SUITE 101
POMONA, CA 91767

Los Angeles County (909) 469-9494

KEITH KUROSE MD

Family Medicine

1770 N ORANGE GROVE AVE, SUITE 101
POMONA, CA 91767

Los Angeles County (909) 469-9494

PATRICIA RUTH WAHLE DO

Student in an Organized Health Care Education/Training Program

1770 N ORANGE GROVE AVE, SUITE 101
POMONA, CA 91767

Los Angeles County (909) 469-9494

CRYSTAL ESTRADA

Family Medicine

1770 N ORANGE GROVE AVE
POMONA, CA 91767

Los Angeles County (909) 469-9494

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 Gregory Dahlquist's NPI number?

The NPI number for Gregory Dahlquist is 1558362467. It was assigned to this individual provider in the NPPES registry on August 2, 2005.

Where is Gregory Dahlquist located?

Gregory Dahlquist practices at 1770 N Orange Grove Ave Sutie 101, Pomona, CA 91767. The listed phone number is (909) 469-9494.

What is Gregory Dahlquist's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Hospice and Palliative Medicine, with taxonomy code 207QH0002X.

Is Gregory Dahlquist enrolled in Medicare?

Yes. Gregory Dahlquist 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 organization bills Medicare for Gregory Dahlquist's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Dahlquist reassigns Medicare benefits to San Bernardino Mountains Community Hospital District (Lake Arrowhead, CA). The 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 Gregory Dahlquist's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Gregory Dahlquist was last updated on March 7, 2023. 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.