Dr. Walter L. Wynne, MD
- Medicare services, 2019
- 624
- Part D claims, 2024
- 1,136
- Hospital affiliations
- 2
- Industry payments
- $135
- Medical groups
- 3
- Practice address
- 284 Spruce St, Gridley, CA 95948
- Practice phone
- Call (530) 846-5671
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Orchard Hospital Medical Specialty Center - Gridley
Rural Health Clinic - Hospital-Owned · Gridley, California
Find Dr. Wynne's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Walter L. Wynne is a hospitalist in Gridley, California
Dr. Wynne practices at Orchard Hospital Medical Specialty Center - Gridley in Gridley, California.
Dr. Wynne's NPI, 1396797817, was assigned on May 16, 2006. Dr. Wynne graduated from University of Cincinnati College of Medicine in 1985. Dr. Wynne holds California license A043607.
- NPI
- 1396797817NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668441379
- NPI enumeration date
- May 16, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (530) 846-5671
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Walter L. Wynne practices at Orchard Hospital Medical Specialty Center - Gridley in Gridley, California
Dr. Wynne's primary practice is Orchard Hospital Medical Specialty Center - Gridley, at 284 Spruce St, Gridley, CA 95948. The practice phone is (530) 846-5671.
- Orchard Hospital Medical Specialty Center - Gridley284 Spruce St, Gridley, CA 95948Phone(530) 846-5671
Source: Dmand AI Affiliation Data
Dr. Walter L. Wynne is affiliated with 5 sites of care and 3 medical groups
Dr. Wynne's primary practice is Orchard Hospital Medical Specialty Center - Gridley in Gridley, California. Dr. Wynne is also affiliated with Orchard Hospital. The medical group on file is Orchard Hospital. Dmand AI also links Dr. Wynne to 1 more hospital, 2 medical groups, 1 group practice or clinic and 1 home health agency, each named with a free account. Dr. Wynne's employer is on file too: a rural health clinic (rhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Walter L. Wynne's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wynne practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Orchard Hospital Medical Specialty Center - Gridley | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Walter L. Wynne is one of 3,186 hospitalists in California
Hospitalist is Dr. Wynne's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Wynne is licensed in California.
Specialties and state licenses
- Hospitalist, CaliforniaPrimary
Hospitalists near Dr. Wynne
Counts of hospitalists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Walter L. Wynne billed Medicare for 624 services in 2019
CMS data shows 624 Medicare services from Dr. Wynne across 7 procedure codes in 2019. Medicare paid $63,094 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Wynne's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 2562019: 624144%
Dr. Wynne compared with the California median for hospitalists, 2019
- Dr. Wynne
- California median
- Medicare services
- 624vs 43045% above
- Part D claims
- 669vs 699.7 times
Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.
Dr. Wynne's most billed Medicare procedure codes, 2019
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Wynne and other hospitalists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Walter L. Wynne's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Wynne's median patient age at 73, with 53% women.
Dr. Wynne's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women53%
- Men47%
Source: Dmand AI Patient Panel Data
Dr. Walter L. Wynne wrote 1,136 Medicare Part D claims in 2024
In 2024, Dr. Wynne wrote 1,136 Medicare Part D claims for 149 patients. 82% of them were for generic drugs. CMS names the drug for 669 of them, across 26 drugs with 11 or more claims each, at $41,661 in total drug cost. In 2023, CMS named 2,878 claims across 79 drugs.
Dr. Wynne's Part D claims by kind of drug, 2024
- Generic926 claims82%
- Brand-name and other210 claims18%
Dr. Wynne's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,8782024: 66977%
Drugs named by CMS: 26 in 2024, 79 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Walter L. Wynne takes part in Medicare
Dr. Wynne accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Walter L. Wynne received $135 in industry payments from 2017 to 2023
CMS Open Payments shows 3 general payments to Dr. Wynne from 3 drug and device companies from 2017 to 2023. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $80.
General payments to Dr. Wynne by program year, 2017 to 2023
Companies that paid Dr. Wynne the most, 2017 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Walter L. Wynne graduated from University of Cincinnati College of Medicine
Dr. Wynne graduated from University of Cincinnati College of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Walter L. Wynne's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Walter L. Wynne
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Walter L. Wynne's NPI number?
Dr. Walter L. Wynne's NPI number is 1396797817. It was assigned on May 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Walter L. Wynne?
Dr. Walter L. Wynne is a hospitalist in Gridley, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Walter L. Wynne practice?
Dr. Wynne practices at 284 Spruce St, Gridley, CA 95948. Dr. Wynne's primary practice is Orchard Hospital Medical Specialty Center - Gridley in Gridley, California. Dmand AI also links Dr. Wynne to 1 hospital, 2 medical groups, 1 group practice or clinic and 1 home health agency.
What is Dr. Walter L. Wynne's office phone number?
The practice phone on file for Dr. Wynne is (530) 846-5671.
What is Dr. Walter L. Wynne's medical license number?
Dr. Wynne holds California license A043607.
Which hospitals is Dr. Walter L. Wynne affiliated with?
Dr. Wynne is affiliated with Orchard Hospital. Dmand AI links Dr. Wynne to 1 more hospital.
What medical group is Dr. Walter L. Wynne part of?
Dr. Wynne is linked to Orchard Hospital. Dmand AI links Dr. Wynne to 2 more medical groups.
Does Dr. Walter L. Wynne accept Medicare?
Yes. CMS data shows Dr. Wynne billed Medicare for 624 services in 2019, and Dr. Wynne accepts Medicare assignment.
What services does Dr. Walter L. Wynne bill to Medicare?
In 2019, Dr. Wynne's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99239) and hospital inpatient care (99223).
Where did Dr. Walter L. Wynne go to medical school?
Dr. Wynne graduated from University of Cincinnati College of Medicine in 1985.
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What drugs does Dr. Walter L. Wynne prescribe most?
In 2024 Medicare Part D data, Dr. Wynne's most prescribed drugs by claims were Levothyroxine Sodium, Amlodipine Besylate and Atorvastatin Calcium.
Has Dr. Walter L. Wynne received payments from drug or device companies?
CMS Open Payments shows $135 in general payments to Dr. Wynne from 3 companies from 2017 to 2023. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Walter L. Wynne been practicing?
Dr. Wynne graduated from medical school in 1985, 41 years ago.
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