2026 NPPES data Hospice and Palliative Medicine (Family Medicine) Physician NPI 1558362467 MD
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GREGORY DAHLQUIST, MD

Hospice and Palliative Medicine (Family Medicine) Physician in POMONA, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
259
Medicare Part D claims · 43 beneficiaries · Hospice and Palliative Medicine (Family Medicine) Physician avg: 2K
Generic prescribing
77%
generic claims · 23% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: GREGORY DAHLQUIST, MD is a Hospice and Palliative Medicine (Family Medicine) Physician ([object Object]) practicing in POMONA, California with a Medicare Part D prescribing footprint of 259 claims across 43 beneficiaries — 23% brand-name prescribing .

What stands out: GREGORY DAHLQUIST, MD filed 259 Medicare Part D claims in 2023 across POMONA, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

GREGORY DAHLQUIST, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

GREGORY DAHLQUIST, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 08/02/2005

NPI 1558362467

Primary specialty

Hospice and Palliative Medicine (Family Medicine) Physician

Niche

784 US NPIs in this specialty

Medicare Part D claims

259 87% vs specialty avg

2023 prescription claims

Specialty avg: 2,070

Specialty distribution in California

How Hospice and Palliative Medicine (Family Medicine) Physician compares to other specialties among California providers

California providers

Hospice and Palliative Medicine (Family Medicine) Physician share within California

1. Hospice and Palliative Medicine (Family Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hospice and Palliative Medicine (Family Medicine) Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Hospice and Palliative Medicine (Family Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Hospice and Palliative Medicine (Family Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Hospice and Palliative Medicine (Family Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Hospice and Palliative Medicine (Family Medicine) Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

GREGORY DAHLQUIST, MD is a Hospice and Palliative Medicine (Family Medicine) Physician provider practicing in POMONA, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1558362467. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

GREGORY DAHLQUIST, MD appears in the CMS NPPES registry as a Hospice and Palliative Medicine (Family Medicine) Physician provider holding MD credentials at 1770 N ORANGE GROVE AVE, POMONA, CA, 91767, with a listed phone of (909) 469-9494. NPI 1558362467 was issued on 08/02/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DAHLQUIST most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 259 prescription claims written by this provider, covering 43 Medicare beneficiaries and totaling roughly $22K in drug spend, split 23% brand-name and 77% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Hospice and Palliative Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 784 enrolled providers across 51 states and an average of 2,070 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1770 N ORANGE GROVE AVE
POMONA, CA 91767

Provider Details

NPI 1558362467
Specialty Hospice and Palliative Medicine (Family Medicine) Physician
Credentials MD
Gender Male
NPI Issued 08/02/2005

Hospital and facility affiliations

Facilities where GREGORY DAHLQUIST, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

SAN BERNARDINO MOUNTAINS COMMUNITY HOSPITAL DISTRICT
LAKE ARROWHEAD, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to GREGORY DAHLQUIST, MD. To verify GREGORY DAHLQUIST, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

GREGORY DAHLQUIST, MD — brand share 23.0%
Specialty average (est.)

23% brand-name claims vs 77% generic, on 259 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

259
Total Claims
$22K
Total Drug Cost
43
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
277
Total Day Supply
7,229
Brand vs Generic
23% brand / 77% generic
Brand Drug Cost
$17K
Generic Drug Cost
$5K
Antibiotic Claims
13

Patient Demographics

Average Patient Age
86.7 years
Avg HCC Risk Score
2.31
Gender Split
74% female / 26% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Levothyroxine Sodium
22
Citalopram Hbr
Citalopram Hydrobromide
18
Omeprazole
18
Eliquis
Apixaban
16
Basaglar Kwikpen U-100
"Insulin Glargine
N/A
Ulticare Pen Needle
"Pen Needle
N/A

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Hospice and Palliative Medicine (Family Medicine) Physician Overview

How GREGORY DAHLQUIST, MD fits within the Hospice and Palliative Medicine (Family Medicine) Physician landscape nationally.

784
Hospice and Palliative Medicine (Family Medicine) Physician Providers in US
51
States with Hospice and Palliative Medicine (Family Medicine) Physician
2,070
Avg Claims per Provider

GREGORY DAHLQUIST, MD's 259 claims are below the specialty average of 2,070.

Nearby Hospice and Palliative Medicine (Family Medicine) Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as DAHLQUIST.

Compare Hospice and Palliative Medicine (Family Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is GREGORY DAHLQUIST, MD's specialty?
GREGORY DAHLQUIST, MD specializes in Hospice and Palliative Medicine (Family Medicine) Physician and practices in POMONA, California. Credentials: MD.
How much does GREGORY DAHLQUIST, MD prescribe under Medicare Part D?
In 2023, GREGORY DAHLQUIST, MD wrote 259 Medicare Part D claims totaling $22K in drug costs for 43 beneficiaries.
Where is GREGORY DAHLQUIST, MD located?
GREGORY DAHLQUIST, MD is located at 1770 N ORANGE GROVE AVE, POMONA, CA, 91767. Phone: (909) 469-9494.
What is GREGORY DAHLQUIST, MD's NPI number?
GREGORY DAHLQUIST, MD's National Provider Identifier (NPI) is 1558362467, issued on 08/02/2005.
Does GREGORY DAHLQUIST, MD prescribe more brand-name or generic drugs?
GREGORY DAHLQUIST, MD's prescribing is 23% brand-name and 77% generic drugs by claim count, with $17K in brand drug costs.
How many Hospice and Palliative Medicine (Family Medicine) Physician providers are there in the US?
There are 784 Hospice and Palliative Medicine (Family Medicine) Physician providers across 51 states in the US. The average Hospice and Palliative Medicine (Family Medicine) Physician provider writes 2,070 Medicare Part D claims per year.
What drugs does GREGORY DAHLQUIST, MD prescribe most often?
Based on 2023 Medicare Part D data, GREGORY DAHLQUIST, MD's most frequently prescribed drugs include Levothyroxine Sodium, Citalopram Hbr, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GREGORY DAHLQUIST, MD accept Medicare?
GREGORY DAHLQUIST, MD appears in CMS Medicare data with 259 Part D claims and 43 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GREGORY DAHLQUIST, MD's credentials?
GREGORY DAHLQUIST, MD's NPI is 1558362467 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology