Donald T. Harwick, PA
- Part D claims, 2024
- 2,769
- Hospital affiliations
- 2
- Industry payments
- $40
- Medical groups
- 2
- State license
- 1
- Practice address
- 9350 North Loop Boulevard, Calif City, CA 93505
- Practice phone
- Call (760) 373-1785
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Adventist Health Medical Office - California City
Rural Health Clinic - Hospital-Owned · Calif City, California
Find Donald Harwick'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.
Donald T. Harwick is a physician assistant in California City, California
Donald Harwick practices at Adventist Health Medical Office - California City in Calif City, California.
Donald Harwick's NPI, 1215136957, was assigned on July 12, 2007. Donald Harwick holds California license PA13177.
- NPI
- 1215136957NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466675053
- NPI enumeration date
- July 12, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (760) 373-1785
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Donald T. Harwick practices at Adventist Health Medical Office - California City in Calif City, California
Donald Harwick's primary practice is Adventist Health Medical Office - California City, at 9350 North Loop Boulevard, Calif City, CA 93505. The practice phone is (760) 373-1785.
- Adventist Health Medical Office - California City9350 North Loop Boulevard, Calif City, CA 93505Phone(760) 373-1785
Source: Dmand AI Affiliation Data
Donald T. Harwick is affiliated with 4 sites of care and 2 medical groups
Donald Harwick's primary practice is Adventist Health Medical Office - California City in Calif City, California. Donald Harwick is also affiliated with Adventist Health Bakersfield. The medical group on file is Adventist Health Tehachapi Valley. Dmand AI also links Donald Harwick to 1 more hospital, 1 home health agency 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 Donald T. Harwick's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Donald Harwick practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Adventist Health Medical Office - California City | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Donald T. Harwick is one of 2,381 physician assistants in California
Medical is Donald Harwick's primary specialty in the NPI Registry, under taxonomy code 363AM0700X. Donald Harwick is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Donald Harwick is licensed in California.
Specialties and state licenses
- Medical physician assistant, CaliforniaPrimary
Clinical focus
Dmand AI lists adjustment disease, anxiety, arthritis, asthma, broken or dislocated ankle/ or foot, bronchitis, bursitis and carpal tunnel syndrome among the conditions Donald Harwick treats.
Physician assistants near Donald Harwick
Counts of physician assistants 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
Donald T. Harwick's patients have a median age of 57
Across all payers, Dmand AI patient panel data puts Donald Harwick's median patient age at 57, with 62% women.
Donald Harwick's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women62%
- Men38%
Source: Dmand AI Patient Panel Data
Donald T. Harwick wrote 2,769 Medicare Part D claims in 2024
In 2024, Donald Harwick wrote 2,769 Medicare Part D claims for 227 patients. 87% of them were for generic drugs. CMS names the drug for 2,173 of them, across 59 drugs with 11 or more claims each, at $126,153 in total drug cost.
Donald Harwick's Part D claims by kind of drug, 2024
- Generic2,404 claims87%
- Brand-name313 claims11%
- Other52 claims2%
Donald Harwick'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.
Drug classes CMS tracks in Donald Harwick's Part D claims, 2024
- Opioids3%80 of 2,769 claims
- Antibiotics2%62 of 2,769 claims
- Antipsychotics, patients 65 and over1%22 of 2,769 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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 Donald T. Harwick takes part in Medicare
Donald Harwick 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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Donald T. Harwick received $40 in industry payments from 2024 to 2025
CMS Open Payments shows 2 general payments to Donald Harwick from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $23.
General payments to Donald Harwick by program year, 2024 to 2025
Companies that paid Donald Harwick the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Donald T. Harwick is board certified in certified physician assistant
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Donald T. Harwick'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 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 Donald T. Harwick
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Donald T. Harwick's NPI number?
Donald T. Harwick's NPI number is 1215136957. It was assigned on July 12, 2007, and it is active in the NPI Registry.
What does Donald T. Harwick specialize in?
Donald T. Harwick is a physician assistant in California City, California. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).
Where does Donald T. Harwick practice?
Donald Harwick practices at 9350 North Loop Boulevard, Calif City, CA 93505. Donald Harwick's primary practice is Adventist Health Medical Office - California City in Calif City, California. Dmand AI also links Donald Harwick to 1 hospital, 1 home health agency and 1 medical group.
What is Donald T. Harwick's office phone number?
The practice phone on file for Donald Harwick is (760) 373-1785.
What is Donald T. Harwick's medical license number?
Donald Harwick holds California license PA13177.
Which hospitals is Donald T. Harwick affiliated with?
Donald Harwick is affiliated with Adventist Health Bakersfield. Dmand AI links Donald Harwick to 1 more hospital.
What medical group is Donald T. Harwick part of?
Donald Harwick is linked to Adventist Health Tehachapi Valley. Dmand AI links Donald Harwick to 1 more medical group.
Does Donald T. Harwick accept Medicare?
Yes. CMS lists Donald Harwick as accepting Medicare assignment.
Is Donald T. Harwick board certified?
Yes. Donald Harwick is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
What drugs does Donald T. Harwick prescribe most?
In 2024 Medicare Part D data, Donald Harwick's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
Has Donald T. Harwick received payments from drug or device companies?
CMS Open Payments shows $40 in general payments to Donald Harwick from 2 companies from 2024 to 2025. The largest total came from GlaxoSmithKline, LLC.
How long has Donald T. Harwick been practicing?
Donald Harwick graduated from medical school in 1986, 40 years ago.
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