NPPES file of Aug 9, 2026

Harry J. Macdannald, M.D..

Sleep Medicine (Internal Medicine) Physician · Walnut Creek, CA

Harry J. Macdannald, M.D.. is a sleep medicine (internal medicine) physician with a practice address in Walnut Creek, California, and NPI 1306895313, issued on May 8, 2006. Check the license (California G26701, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1306895313
Name
Harry J. Macdannald
Credential
M.D..
Primary taxonomy
Sleep Medicine (Internal Medicine) Physician 207RS0012X
License numbers
G26701 CA
G267010 CA
Self-reported in NPPES; status is on the state search
Practice location
130 LA Casa Via, Walnut Creek, CA 94598
Phone
(925) 944-0166
Enumerated
May 8, 2006
Record last updated
Sep 11, 2025
Medicaid ID
00G267010 CA
Medicare enrollment
Enrolled (PECOS I20080811000423); accepts Medicare assignment
Medical or professional school
University Of California, Davis School Of Medicine, 1972
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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8 nearest sleep medicine (internal medicine) physician records → All 129 in California → Look up another NPI →

Also registered at 130 LA Casa Via

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

  1. Shilpi Anand, M.D.Allergy Physician1871556605
  2. Michael Baker, M.D.Surgery Physician1043309008
  3. Emily Brama, RN, MSN, FNP, NP-CNurse Practitioner1952696684
  4. Angela Christian, N.P.Nurse Practitioner1023442167
  5. Michael Cohen, M.D.Critical Care Medicine (Internal Medicine) Physician1205885779
  6. David Cook, MDAllergy & Immunology Physician1740282425

Verify Harry J. Macdannald in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G26701    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 California license search

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61% more Medicare Part D claims than the average sleep medicine (internal medicine) physician in 2024

941 Medicare Part D claims for 232 beneficiaries, against an average of 585 among the 852 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.

  1. Harry Macdannald941
  2. Specialty average585

Most prescribed

  1. Trelegy Ellipta147 claims
  2. Trazodone Hcl114 claims
  3. Albuterol Sulfate Hfa94 claims
  4. Zolpidem Tartrate59 claims
  5. Clonazepam46 claims
  6. Montelukast Sodium38 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.

Industry payments in 2024: $927.17

36 payments; by number, the most common kind was food and beverage; the largest payer was Jazz Pharmaceuticals Inc. The 664 providers of this specialty with any payment received $3,724.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Harry Macdannald$927.17
  2. Specialty average$3,724.37

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. Jiva Health IncWalnut Creek, CA

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

Harry J. Macdannald among 129 sleep medicine (internal medicine) physician records in California

Harry J. Macdannald, M.D.. is one of 129 sleep medicine (internal medicine) physician records with a practice address in California. 95% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 71% newer
  • In a Medicare fileYes · 95% of these records are
  • In the CMS Doctors and Clinicians fileYes · 82% of these records are
  • Graduated1972 · median 2006 among the 106 with a school on file
  • Record last updated2025 · 35% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sleep Medicine (Internal Medicine) Physician providers in California

There are 129 sleep medicine (internal medicine) physician records in California.

All 129 in California → Every provider in Walnut Creek → Sleep Medicine (Internal Medicine) Physician nationwide →

The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes

  1. Snow Peterson, DO, MSVallejo, CA 945901477809093
  2. Connie Singh, MDPleasanton, CA 945881427212653
  3. Navjot GrewalSan Ramon, CA 945831245646231
  4. Jatinder Marwaha, M.D.San Ramon, CA 945831417910407
  5. Aditya Bhargava, M.D.Dublin, CA 945681114938032
  6. Steven RussoMartinez, CA 945531932659059
  7. Yema JalalFremont, CA 945381255919775
  8. Puja Thakkar, D.O.Danville, CA 945261558665562

Common questions

What is Harry J. Macdannald, M.D..'s NPI number?

Harry J. Macdannald, M.D..'s National Provider Identifier (NPI) is 1306895313, issued on May 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Harry J. Macdannald, M.D.. located?

The NPPES record lists a practice address at 130 LA Casa Via, Walnut Creek, CA, 94598. Phone: (925) 944-0166. Providers update this record themselves, so call before visiting.

How can I verify Harry J. Macdannald, M.D..'s license?

NPPES lists California license number G26701, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Harry J. Macdannald, M.D.. prescribe under Medicare Part D?

In 2024, Harry J. Macdannald, M.D.. had 941 Medicare Part D claims for 232 beneficiaries; the average among sleep medicine (internal medicine) physician prescribers was 585. Part D covers Medicare prescriptions only.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.