Dr. David D. Keller, DO
- Medicare services, 2024
- 415
- Medicare patients, 2024
- 130
- Hospital affiliations
- 1
- Industry payments
- $386
- Medical group
- 1
- Practice address
- 22 Bramhall St, Portland, ME 04102
- Practice phone
- Call (207) 662-0111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Keller's professional email, personal email and mobile number
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Dr. David D. Keller is a family medicine physician in Portland, Maine
Dr. Keller practices at MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth.
Dr. Keller's NPI, 1861448201, was assigned on May 26, 2006. Dr. Keller graduated from Philadelphia College of Osteopathic Medicine in 2002. Dr. Keller holds Maine license 1819.
- NPI
- 1861448201NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032112446
- NPI enumeration date
- May 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (207) 662-0111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David D. Keller practices at MaineHealth Maine Medical Center in Portland, Maine
Dr. Keller's primary practice is MaineHealth Maine Medical Center, at 22 Bramhall St, Portland, ME 04102 in Cumberland County. The practice phone is (207) 662-0111.
- MaineHealth Maine Medical Center22 Bramhall St, Portland, ME 04102 · Cumberland CountyPhone(207) 662-0111
Source: Dmand AI Affiliation Data
Dr. David D. Keller is affiliated with 2 sites of care and 1 medical group
Dr. Keller's primary practice is MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth. The medical group on file is Hospital Osteopathic Manipulative Medicine PC. Dmand AI also links Dr. Keller to 1 more physician office, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David D. Keller's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Keller practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MaineHealth Maine Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David D. Keller is one of 991 family medicine physicians in Maine
Family medicine is Dr. Keller's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Keller is licensed in Maine.
Specialties and state licenses
- Family medicine, MainePrimary
Family medicine physicians near Dr. Keller
Counts of family 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
Dr. David D. Keller billed Medicare for 415 services in 2024
CMS data shows 415 Medicare services from Dr. Keller across 4 procedure codes in 2024, for 130 Medicare patients. Medicare paid $26,278 for them.
Dr. Keller's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 2822024: 21026%
- Office and hospital visits
- 2023: 2632024: 20522%
Where Dr. Keller's Medicare services took place, 2024
- In an office13132%
- In a facility28468%
Dr. Keller compared with the Maine median for family medicine physicians, 2024
- Dr. Keller
- Maine median
- Medicare services
- 415vs 1902.2 times
- Medicare patients
- 130vs 9635% above
Medians across 1,046 family medicine physicians in Maine with Dmand AI profiles that report each measure.
Dr. Keller's most billed Medicare procedure codes, 2024
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. Keller and other family medicine physicians in Maine.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David D. Keller treated 130 Medicare patients in 2024, average age 70
CMS counts 130 Medicare patients who saw Dr. Keller in 2024. The largest group is 65 to 74, with 45 patients. 75% of them have high blood pressure, and 67% have high cholesterol. 35% are also on Medicaid. Their average risk score is 2.19, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Keller's median patient age at 53, with 51% women.
Dr. Keller's Medicare patients by age, 2024
Dr. Keller's Medicare patients by sex, 2024
- Women7558%
- Men5542%
Chronic conditions among Dr. Keller's Medicare patients, 2024
- High blood pressure75%
- High cholesterol67%
- Mood disorders55%
- Anxiety54%
- Arthritis53%
- Depression48%
- Ischemic heart disease45%
- Chronic kidney disease40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Keller's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. David D. Keller takes part in Medicare
Dr. Keller 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. David D. Keller received $386 in industry payments from 2022 to 2024
CMS Open Payments shows 8 general payments to Dr. Keller from 4 drug and device companies from 2022 to 2024. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $154.
General payments to Dr. Keller by program year, 2022 to 2024
Companies that paid Dr. Keller the most, 2022 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David D. Keller graduated from Philadelphia College of Osteopathic Medicine
Dr. Keller graduated from Philadelphia College of Osteopathic Medicine in 2002.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David D. Keller'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 DataMedicare Physician & Other Practitioners - 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. David D. Keller
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. David D. Keller's NPI number?
Dr. David D. Keller's NPI number is 1861448201. It was assigned on May 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David D. Keller?
Dr. David D. Keller is a family medicine physician in Portland, Maine. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. David D. Keller practice?
Dr. Keller practices at 22 Bramhall St, Portland, ME 04102. Dr. Keller's primary practice is MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth. Dmand AI also links Dr. Keller to 1 physician office.
What is Dr. David D. Keller's office phone number?
The practice phone on file for Dr. Keller is (207) 662-0111.
What is Dr. David D. Keller's medical license number?
Dr. Keller holds Maine license 1819.
Which hospitals is Dr. David D. Keller affiliated with?
Dr. Keller practices at MaineHealth Maine Medical Center in Portland, Maine.
What medical group is Dr. David D. Keller part of?
Dr. Keller is linked to Hospital Osteopathic Manipulative Medicine PC.
Does Dr. David D. Keller accept Medicare?
Yes. CMS data shows Dr. Keller billed Medicare for 415 services in 2024, and Dr. Keller accepts Medicare assignment.
How many Medicare patients does Dr. David D. Keller see?
CMS counts 130 Medicare patients who saw Dr. Keller in 2024, with an average age of 70.
What services does Dr. David D. Keller bill to Medicare?
In 2024, Dr. Keller's most billed Medicare services were medical service (98929), hospital inpatient care (99222) and office visit, established patient (99213).
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Where did Dr. David D. Keller go to medical school?
Dr. Keller graduated from Philadelphia College of Osteopathic Medicine in 2002.
Has Dr. David D. Keller received payments from drug or device companies?
CMS Open Payments shows $386 in general payments to Dr. Keller from 4 companies from 2022 to 2024. The largest total came from Stryker Corporation.
How long has Dr. David D. Keller been practicing?
Dr. Keller graduated from medical school in 2002, 24 years ago.
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