2026 NPPES data Neurology Physician NPI 1548290661 M.D.
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XIAOYAN GUO, M.D.

Neurology Physician in NEWNAN, Georgia. 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
2K
Medicare Part D claims · 150 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$3.9K
184 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: XIAOYAN GUO, M.D. is a Neurology Physician ([object Object]) practicing in NEWNAN, Georgia with a Medicare Part D prescribing footprint of 2K claims across 150 beneficiaries — 5% brand-name prescribing . Industry payments of $3.9K across 184 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: XIAOYAN GUO, M.D. filed 1,880 Medicare Part D claims in 2023 across NEWNAN, Georgia. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

XIAOYAN GUO, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

XIAOYAN GUO, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/04/2006

NPI 1548290661

Primary specialty

Neurology Physician

Mid-sized

19,866 US NPIs in this specialty

Medicare Part D claims

1,880 44% vs specialty avg

2023 prescription claims

Specialty avg: 1,309

Specialty distribution in Georgia

How Neurology Physician compares to other specialties among Georgia providers

Georgia providers

Neurology Physician share within Georgia

1. Neurology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Neurology Physician share within Georgia

Specialty board-certification context

Estimated specialty board-certified rate — Neurology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Neurology Physician ABMS/AOA estimate

Est. board-certified rate (Neurology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Neurology 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).

XIAOYAN GUO, M.D. is a Neurology Physician provider practicing in NEWNAN, Georgia, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1548290661. 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.

XIAOYAN GUO, M.D. appears in the CMS NPPES registry as a Neurology Physician provider holding M.D. credentials at 2959 SHARPSBURG MCCULLUM RD, NEWNAN, GA, 30265, with a listed phone of (770) 502-2000. NPI 1548290661 was issued on 07/04/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GUO 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 1,880 prescription claims written by this provider, covering 150 Medicare beneficiaries and totaling roughly $404K in drug spend, split 5% brand-name and 95% generic by claim count, with an opioid prescribing rate of 5.9%. 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.

Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 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

2959 SHARPSBURG MCCULLUM RD
NEWNAN, GA 30265

Provider Details

NPI 1548290661
Specialty Neurology Physician
Credentials M.D.
Gender Female
NPI Issued 07/04/2006

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for XIAOYAN GUO, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$3.9K

Largest payer

UCB, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Generic-heavy

XIAOYAN GUO, M.D. — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 1,880 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.

1,880
Total Claims
$404K
Total Drug Cost
150
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,927
Total Day Supply
84,204
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$359K
Generic Drug Cost
$44K
Opioid Claims
110 (5.9% rate)

Patient Demographics

Average Patient Age
71.7 years
Avg HCC Risk Score
1.59
Gender Split
69% female / 31% male
Age Distribution
<65: 34, 65-74: 46, 75-84: 49, 85+: 21

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Gabapentin
146
Clonazepam
117
Memantine Hcl
89
Alprazolam
77
Carbidopa-Levodopa
Carbidopa/Levodopa
77
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
71
Pregabalin
66
Levetiracetam
61
Lamotrigine
56
Baclofen
55

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

Neurology Physician Overview

How XIAOYAN GUO, M.D. fits within the Neurology Physician landscape nationally.

19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider

XIAOYAN GUO, M.D.'s 1,880 claims are above the specialty average of 1,309.

Nearby Neurology Physician Providers in Georgia

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

Compare Neurology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is XIAOYAN GUO, M.D.'s specialty?
XIAOYAN GUO, M.D. specializes in Neurology Physician and practices in NEWNAN, Georgia. Credentials: M.D..
How much does XIAOYAN GUO, M.D. prescribe under Medicare Part D?
In 2023, XIAOYAN GUO, M.D. wrote 1,880 Medicare Part D claims totaling $404K in drug costs for 150 beneficiaries.
Where is XIAOYAN GUO, M.D. located?
XIAOYAN GUO, M.D. is located at 2959 SHARPSBURG MCCULLUM RD, NEWNAN, GA, 30265. Phone: (770) 502-2000.
What is XIAOYAN GUO, M.D.'s NPI number?
XIAOYAN GUO, M.D.'s National Provider Identifier (NPI) is 1548290661, issued on 07/04/2006.
Does XIAOYAN GUO, M.D. prescribe more brand-name or generic drugs?
XIAOYAN GUO, M.D.'s prescribing is 5% brand-name and 95% generic drugs by claim count, with $359K in brand drug costs.
Does XIAOYAN GUO, M.D. prescribe opioids?
Yes, XIAOYAN GUO, M.D. had 110 opioid claims in 2023 with an opioid prescribing rate of 5.9%.
How many Neurology Physician providers are there in the US?
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does XIAOYAN GUO, M.D. prescribe most often?
Based on 2023 Medicare Part D data, XIAOYAN GUO, M.D.'s most frequently prescribed drugs include Gabapentin, Clonazepam, Memantine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does XIAOYAN GUO, M.D. accept Medicare?
XIAOYAN GUO, M.D. appears in CMS Medicare data with 1,880 Part D claims and 150 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify XIAOYAN GUO, M.D.'s credentials?
XIAOYAN GUO, M.D.'s NPI is 1548290661 with credentials M.D.. 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