Nathan B. Williams
- Medicare services, 2023
- 66
- Part D claims, 2024
- 354
- Affiliated sites
- 2
- Medical groups
- 2
- Insurance carriers
- 15
- Practice address
- 9390 Hesperia Rd, Hesperia, CA 92345
- Practice phone
- Call (760) 998-2125
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Impact Care Urgent Care
Urgent Care Center · Hesperia, California
Find Nathan Williams' professional email, personal email and mobile number
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Nathan B. Williams is an adult medicine physician in Hesperia, California
Nathan Williams practices at Impact Care Urgent Care in Hesperia, California.
Nathan Williams' NPI, 1548345473, was assigned on October 26, 2006. Nathan Williams graduated from Loma Linda University School Of Medicine in 2000. Nathan Williams' California license number on file is A79720.
- NPI
- 1548345473NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0840209946
- NPI enumeration date
- October 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (760) 998-2125
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Nathan B. Williams practices at Impact Care Urgent Care in Hesperia, California
Nathan Williams' primary practice is Impact Care Urgent Care, at 9390 Hesperia Rd, Hesperia, CA 92345. The practice phone is (760) 998-2125.
- Impact Care Urgent Care9390 Hesperia Rd, Hesperia, CA 92345Phone(760) 998-2125
Source: Dmand AI Affiliation Data
Nathan B. Williams is affiliated with 2 sites of care and 2 medical groups
Nathan Williams' primary practice is Impact Care Urgent Care in Hesperia, California. The medical group on file is Impact Care Medical Group. Dmand AI also links Nathan Williams to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Nathan B. Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Nathan Williams practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Impact Care Urgent Care | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Nathan B. Williams is one of 299 adult medicine physicians in California
Adult medicine is Nathan Williams' primary specialty in the NPI Registry, under taxonomy code 207QA0505X. Nathan Williams is board certified in family medicine by the American Board of Family Medicine. Nathan Williams has a license on file in California.
Specialties and state licenses
- Adult medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute skin infection, bronchitis, chronic hypertension, diabetic emergency, head wound, high cholesterol, thoracic spine disorders and upper respiratory infection (URI) among the conditions Nathan Williams treats.
Adult medicine physicians near Nathan Williams
Counts of adult medicine physicians 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
Nathan B. Williams billed Medicare for 66 services in 2023
CMS data shows 66 Medicare services from Nathan Williams across 3 procedure codes in 2023, all of them office visits. Medicare paid $4,052 for them. Every service was in an office.
Nathan Williams' Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 392023: 6669%
Nathan Williams compared with the California median for adult medicine physicians, 2023
- Nathan Williams
- California median
- Medicare services
- 66vs 19967% below
- Part D claims
- 146vs 96385% below
Medians across 284 adult medicine physicians in California with Dmand AI profiles that report each measure.
Nathan Williams' most billed Medicare procedure codes, 2023
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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Nathan B. Williams' patients have a median age of 43
Across all payers, Dmand AI patient panel data puts Nathan Williams' median patient age at 43, with 53% women.
Nathan Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women53%
- Men46%
Source: Dmand AI Patient Panel Data
Nathan B. Williams wrote 354 Medicare Part D claims in 2024
In 2024, Nathan Williams wrote 354 Medicare Part D claims for 62 patients. 82% of them were for generic drugs. CMS names the drug for 146 of them, across 9 drugs with 11 or more claims each, at $772 in total drug cost. In 2023, CMS named 63 claims across 4 drugs.
Nathan Williams' Part D claims by kind of drug, 2024
- Generic292 claims82%
- Brand-name51 claims14%
- Other11 claims3%
Nathan Williams' 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: 632024: 146132%
Drugs named by CMS: 9 in 2024, 4 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 Nathan B. Williams takes part in Medicare
Nathan Williams 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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Nathan B. Williams graduated from Loma Linda University School Of Medicine
Nathan Williams graduated from Loma Linda University School Of Medicine in 2000.
- Medical school
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
Nathan B. Williams accepts plans from 15 insurance carriers
Nathan Williams is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- LA Care
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- +7 more carriersWith a free account
Plan types Nathan Williams accepts, by number of carriers
- Medicare9
- PPO9
- HMO8
- EPO4
- POS4
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Nathan B. Williams'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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Nathan B. Williams
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Nathan B. Williams' NPI number?
Nathan B. Williams' NPI number is 1548345473. It was assigned on October 26, 2006, and it is active in the NPI Registry.
What does Nathan B. Williams specialize in?
Nathan B. Williams is an adult medicine physician in Hesperia, California. The primary specialty in the NPI Registry is Adult Medicine Physician (taxonomy code 207QA0505X).
Where does Nathan B. Williams practice?
Nathan Williams practices at 9390 Hesperia Rd, Hesperia, CA 92345. Nathan Williams' primary practice is Impact Care Urgent Care in Hesperia, California. Dmand AI also links Nathan Williams to 1 group practice or clinic and 1 medical group.
What is Nathan B. Williams' office phone number?
The practice phone on file for Nathan Williams is (760) 998-2125.
What is Nathan B. Williams' medical license number?
Nathan Williams' California license number on file is A79720.
What medical group is Nathan B. Williams part of?
Nathan Williams is linked to Impact Care Medical Group. Dmand AI links Nathan Williams to 1 more medical group.
Does Nathan B. Williams accept Medicare?
Yes. CMS data shows Nathan Williams billed Medicare for 66 services in 2023, and Nathan Williams accepts Medicare assignment.
Is Nathan B. Williams board certified?
Yes. Nathan Williams is board certified in family medicine by the American Board of Family Medicine.
What services does Nathan B. Williams bill to Medicare?
In 2023, Nathan Williams' most billed Medicare services were office visit, new patient (99203), office visit, established patient (99214) and office visit, established patient (99213).
Where did Nathan B. Williams go to medical school?
Nathan Williams graduated from Loma Linda University School Of Medicine in 2000.
Show 3 more questionsShow fewer questions
What drugs does Nathan B. Williams prescribe most?
In 2024 Medicare Part D data, Nathan Williams' most prescribed drugs by claims were Omeprazole, Atorvastatin Calcium and Levothyroxine Sodium.
How long has Nathan B. Williams been practicing?
Nathan Williams graduated from medical school in 2000, 26 years ago.
What insurance does Nathan B. Williams accept?
Nathan Williams is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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