NPPES file of Aug 9, 2026

Xiang-Yang D. Guo, MD

Gastroenterology Physician · Falmouth, MA

Xiang-Yang D. Guo, MD is a gastroenterology physician with a practice address in Falmouth, Massachusetts, and NPI 1245282508, issued on May 16, 2006. Check the license (Massachusetts 219396, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1245282508
Name
Xiang-Yang D. Guo
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
219396 MA
Self-reported in NPPES; status is on the state search
Practice location
90 Ter Heun Dr, Falmouth, MA 02540
Phone
(508) 495-7160
Enumerated
May 16, 2006
Record last updated
Jan 8, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(508) 495-7152
Medicaid ID
2106132 MA
Medicare enrollment
Enrolled (PECOS I20050719000645); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 90 Ter Heun Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nisha David, M.D.Obstetrics & Gynecology Physician1851689988
  2. Sam Donta, MDInfectious Disease Physician1477502086
  3. John Guerin, M.D.Cardiovascular Disease Physician1740391432
  4. John Hostetter, M.D.Cardiovascular Disease Physician1518069954
  5. Bruce Levy, M.D.Cardiovascular Disease Physician1801999230
  6. Bernard Nagel, MDObstetrics & Gynecology Physician1114941036

Verify Xiang-Yang D. Guo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 219396
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

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4% more Medicare Part D claims than the average gastroenterology physician in 2024

847 Medicare Part D claims for 401 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Xiang-Yang Guo847
  2. Specialty average811

Most prescribed

  1. Omeprazole141 claims
  2. Gavilyte-G135 claims
  3. Mesalamine82 claims
  4. Sod Sulf-Potass Sulf-Mag Sulf74 claims
  5. Colestipol Hcl64 claims
  6. Balsalazide Disodium35 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 79.8 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score63.4
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $172.98

2 payments; by number, the most common kind was food and beverage; the largest payer was Madrigal Pharmaceuticals. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Xiang-Yang Guo$172.98
  2. Specialty average$5,015.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Medical Affiliates OF Cape Cod IncFalmouth, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gastroenterology Physician providers in Massachusetts

There are 686 gastroenterology physician records in Massachusetts.

Other gastroenterology physician records in Massachusetts

  1. Robert Aaron, MDStoneham, MA1962694323
  2. Michael Aaronson, MDBeverly, MA1366547739
  3. Diane Abraczinskas, MDBoston, MA1811988488
  4. Nitin Aggarwal, M.D.North Chelmsford, MA1407145402
  5. Jaya Agrawal, M.D.Florence, MA1316979842
  6. Heidi Ahmed, M.D.North Chelmsford, MA1801276472
  7. Lynne Ahn, MDFramingham, MA1144269143
  8. Hiroyuki Aihara, M.D.Boston, MA1619395795
  9. Mona AkbariSouth Weymouth, MA1871720037
  10. Geetanjali Akerkar, M.D.Chelmsford, MA1144289166

Common questions

What is Xiang-Yang D. Guo, MD's NPI number?

Xiang-Yang D. Guo, MD's National Provider Identifier (NPI) is 1245282508, issued on May 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Xiang-Yang D. Guo, MD located?

The NPPES record lists a practice address at 90 Ter Heun Dr, Falmouth, MA, 02540. Phone: (508) 495-7160. Providers update this record themselves, so call before visiting.

How can I verify Xiang-Yang D. Guo, MD's license?

NPPES lists Massachusetts license number 219396, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Xiang-Yang D. Guo, MD prescribe under Medicare Part D?

In 2024, Xiang-Yang D. Guo, MD had 847 Medicare Part D claims for 401 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Xiang-Yang D. Guo, MD's MIPS final score?

The 2023 MIPS final score is 79.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.