Dr. John O. Langley, MD
- Part D claims, 2017
- 11
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- PO Box 151, Presque Isle, ME 04769
- Practice phone
- Call (207) 768-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Langley'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. John O. Langley is an OB-GYN in Presque Isle, Maine
Dr. Langley practices at Northern Light AR Gould Hospital in Presque Isle, Maine, part of Northern Light Health.
Dr. Langley's NPI, 1275553984, was assigned on July 19, 2006. Dr. Langley holds Maine license 010506.
- NPI
- 1275553984NPI Registry (opens in a new tab)
- NPI enumeration date
- July 19, 2006
- NPI status
- Active
- Practice phone
- (207) 768-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. John O. Langley practices at 2 locations in Presque Isle, Maine
Dr. Langley's primary practice is Northern Light AR Gould Hospital, at PO Box 151, Presque Isle, ME 04769 in Aroostook County. The practice phone is (207) 768-4000. The NPI Registry lists Dr. Langley's practice address as 140 Academy St, Presque Isle, ME 04769.
- Northern Light AR Gould HospitalPrimaryPO Box 151, Presque Isle, ME 04769 · Aroostook CountyPhone(207) 768-4000
- NPI Registry address140 Academy St, Presque Isle, ME 04769 · Aroostook CountyPhone(207) 768-5944
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. John O. Langley is affiliated with 1 site of care and 1 medical group
Dr. Langley's primary practice is Northern Light AR Gould Hospital in Presque Isle, Maine, part of Northern Light Health. The medical group on file is Northern Light AR Gould Hospital. Dr. Langley's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John O. Langley's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Langley practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northern Light AR Gould Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Northern Light Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John O. Langley is one of 172 OB-GYNs in Maine
Obstetrics and gynecology is Dr. Langley's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Langley is licensed in Maine.
Specialties and state licenses
- Obstetrics and gynecology, MainePrimary
OB-GYNs near Dr. Langley
Counts of OB-GYNs 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. John O. Langley's patients have a median age of 83
Across all payers, Dmand AI patient panel data puts Dr. Langley's median patient age at 83, with 100% women.
Dr. Langley's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 83
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. John O. Langley wrote 11 Medicare Part D claims in 2017
In 2017, Dr. Langley wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $186 in total drug cost.
Dr. Langley's most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sources for Dr. John O. Langley'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 DataDmand AI Practice 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) |
| 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. John O. Langley
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. John O. Langley's NPI number?
Dr. John O. Langley's NPI number is 1275553984. It was assigned on July 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John O. Langley?
Dr. John O. Langley is an OB-GYN in Presque Isle, Maine. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. John O. Langley practice?
Dr. Langley practices at PO Box 151, Presque Isle, ME 04769. Dr. Langley also practices at 140 Academy St, Presque Isle, ME 04769. Dr. Langley's primary practice is Northern Light AR Gould Hospital in Presque Isle, Maine, part of Northern Light Health.
What is Dr. John O. Langley's office phone number?
The practice phone on file for Dr. Langley is (207) 768-4000.
What is Dr. John O. Langley's medical license number?
Dr. Langley holds Maine license 010506.
Which hospitals is Dr. John O. Langley affiliated with?
Dr. Langley practices at Northern Light AR Gould Hospital in Presque Isle, Maine.
What medical group is Dr. John O. Langley part of?
Dr. Langley is linked to Northern Light AR Gould Hospital.
What drugs does Dr. John O. Langley prescribe most?
In 2017 Medicare Part D data, Dr. Langley's most prescribed drugs by claims were Levothyroxine Sodium.
How long has Dr. John O. Langley been practicing?
Dr. Langley's NPI was assigned in 2006.
Selling to obstetrics and gynecology practices?
See OB-GYNs in Maine by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card