Dr. Michael Albert Hattwick, MD
- Medicare services, 2023
- 50
- Part D claims, 2024
- 239
- Hospital affiliations
- 1
- Industry payments
- $20
- Medical groups
- 2
- Practice address
- 8301 Arlington Blvd, Fairfax, VA 22031-2902
- Practice phone
- Call (703) 698-9000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Prosperity Primary Care
Primary care practice · Fairfax, Virginia
Find Dr. Hattwick's professional email, personal email and mobile number
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Dr. Michael Albert Hattwick is an internist in Fairfax, Virginia
Dr. Hattwick practices at Prosperity Primary Care in Fairfax, Virginia.
Dr. Hattwick's NPI, 1356496988, was assigned on January 24, 2007. Dr. Hattwick graduated from Baylor College of Medicine in 1968. Dr. Hattwick holds Virginia license 0101028343.
- NPI
- 1356496988NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668576612
- NPI enumeration date
- January 24, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (703) 698-9000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 84
- Medical school graduation
- 1968
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Albert Hattwick practices at 2 locations in Fairfax, Virginia
Dr. Hattwick's primary practice is Prosperity Primary Care, at 8301 Arlington Blvd, Fairfax, VA 22031-2902. The practice phone is (703) 698-9000. The NPI Registry lists Dr. Hattwick's practice address as 3600 Joseph Siewick Dr, Fairfax, VA 22033.
- Prosperity Primary CarePrimary8301 Arlington Blvd, Fairfax, VA 22031-2902Phone(703) 698-9000
- NPI Registry address3600 Joseph Siewick Dr, Fairfax, VA 22033 · Fairfax CountyPhone(703) 698-9000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Michael Albert Hattwick is affiliated with 3 sites of care and 2 medical groups
Dr. Hattwick's primary practice is Prosperity Primary Care in Fairfax, Virginia. Dr. Hattwick is also affiliated with Inova Fair Oaks Hospital. The medical group on file is Inova Urgent Care Center. Dmand AI also links Dr. Hattwick to 1 more physician office and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Michael Albert Hattwick's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hattwick practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Prosperity Primary Care | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael Albert Hattwick is one of 3,339 internists in Virginia
Internal medicine is Dr. Hattwick's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Hattwick is licensed in Virginia.
Specialties and state licenses
- Internal medicine, VirginiaPrimary
Internists near Dr. Hattwick
Counts of internists 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. Michael Albert Hattwick billed Medicare for 50 services in 2023
CMS data shows 50 Medicare services from Dr. Hattwick across 1 procedure code in 2023, all of them office visits. Medicare paid $2,779 for them. Every service was in an office.
Dr. Hattwick's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 462023: 509%
Dr. Hattwick compared with the Virginia median for internists, 2023
- Dr. Hattwick
- Virginia median
- Medicare services
- 50vs 60792% below
- Part D claims
- 44vs 22480% below
Medians across 3,182 internists in Virginia with Dmand AI profiles that report each measure.
Dr. Hattwick's 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hattwick and other internists in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Albert Hattwick's patients have a median age of 74
Across all payers, Dmand AI patient panel data puts Dr. Hattwick's median patient age at 74, with 48% women.
Dr. Hattwick's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women48%
- Men52%
Source: Dmand AI Patient Panel Data
Dr. Michael Albert Hattwick wrote 239 Medicare Part D claims in 2024
In 2024, Dr. Hattwick wrote 239 Medicare Part D claims for 25 patients. 79% of them were for generic drugs. CMS names the drug for 44 of them, across 3 drugs with 11 or more claims each, at $1,069 in total drug cost. In 2023, CMS named 44 claims across 3 drugs.
Dr. Hattwick's Part D claims by kind of drug, 2024
- Generic190 claims79%
- Brand-name and other49 claims21%
Dr. Hattwick'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: 442024: 44No change
Drugs named by CMS: 3 in 2024, 3 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
Dr. Michael Albert Hattwick offers telehealth to Medicare patients
Dr. Hattwick accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hattwick as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Michael Albert Hattwick received $20 in industry payments in 2021
CMS Open Payments shows 1 general payment to Dr. Hattwick from 1 drug or device company in 2021. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $20.
Companies that paid Dr. Hattwick the most, 2021 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael Albert Hattwick graduated from Baylor College of Medicine
Dr. Hattwick graduated from Baylor College of Medicine in 1968.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael Albert Hattwick'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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. Michael Albert Hattwick
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. Michael Albert Hattwick's NPI number?
Dr. Michael Albert Hattwick's NPI number is 1356496988. It was assigned on January 24, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Albert Hattwick?
Dr. Michael Albert Hattwick is an internist in Fairfax, Virginia. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael Albert Hattwick practice?
Dr. Hattwick practices at 8301 Arlington Blvd, Fairfax, VA 22031-2902. Dr. Hattwick also practices at 3600 Joseph Siewick Dr, Fairfax, VA 22033. Dr. Hattwick's primary practice is Prosperity Primary Care in Fairfax, Virginia. Dmand AI also links Dr. Hattwick to 1 physician office and 1 medical group.
What is Dr. Michael Albert Hattwick's office phone number?
The practice phone on file for Dr. Hattwick is (703) 698-9000.
What is Dr. Michael Albert Hattwick's medical license number?
Dr. Hattwick holds Virginia license 0101028343.
Which hospitals is Dr. Michael Albert Hattwick affiliated with?
Dr. Hattwick is affiliated with Inova Fair Oaks Hospital.
What medical group is Dr. Michael Albert Hattwick part of?
Dr. Hattwick is linked to Inova Urgent Care Center. Dmand AI links Dr. Hattwick to 1 more medical group.
Does Dr. Michael Albert Hattwick accept Medicare?
Yes. CMS data shows Dr. Hattwick billed Medicare for 50 services in 2023, and Dr. Hattwick accepts Medicare assignment.
Does Dr. Michael Albert Hattwick offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Hattwick as offering telehealth services.
What services does Dr. Michael Albert Hattwick bill to Medicare?
In 2023, Dr. Hattwick's most billed Medicare services were office visit, established patient (99213).
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Where did Dr. Michael Albert Hattwick go to medical school?
Dr. Hattwick graduated from Baylor College of Medicine in 1968.
What drugs does Dr. Michael Albert Hattwick prescribe most?
In 2024 Medicare Part D data, Dr. Hattwick's most prescribed drugs by claims were Synthroid, Amlodipine Besylate and Lisinopril.
Has Dr. Michael Albert Hattwick received payments from drug or device companies?
CMS Open Payments shows $20 in general payments to Dr. Hattwick from 1 company from 2021 to 2021. The largest total came from Abbvie Inc.
How long has Dr. Michael Albert Hattwick been practicing?
Dr. Hattwick graduated from medical school in 1968, 58 years ago.
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