Edwin Enoch Johnstone, MD
Psychiatry Physician · Houston, TX
Edwin Enoch Johnstone, MD is a psychiatry physician with a practice address in Houston, Texas, and NPI 1295925287, issued on Jul 26, 2007. Check the license (Texas D1688, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Edwin Enoch Johnstone
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- D1688 TX
Self-reported in NPPES; status is on the state search - Practice location
- 2323 South Shepherd Drive, Houston, TX 77019
- Phone
- (713) 528-4000
- Enumerated
- Jul 26, 2007
- Record last updated
- Jul 26, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (713) 528-4004
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 3,318 in Texas → Look up another NPI →
Verify Edwin Enoch Johnstone in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license D1688Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average psychiatry physician in 2024
113 Medicare Part D claims for 14 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Clonazepam18 claims
- Quetiapine Fumarate17 claims
- Selegiline Hcl12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Edwin Enoch Johnstone among 3,318 psychiatry physician records in Texas
Edwin Enoch Johnstone, MD is one of 3,318 psychiatry physician records with a practice address in Texas. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 35% of them.
- NPI issued2007 · 35% of these records are older, 51% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2007 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Texas
There are 3,318 psychiatry physician records in Texas.
All 3,318 in Texas → Every provider in Houston → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Mariame Cofresi-Aviles, M.D.Houston, TX 770191861615171
- Catherine Flowers, M.D.Houston, TX 770191306069174
- Angela Partida, M.D,Houston, TX 770191093930158
- James Paskowitz, M.D.Houston, TX 770191700805306
- Manuel Ramirez, M.D.Houston, TX 770191386793974
- Catherine Stevenson, MDHouston, TX 770191063625994
- Nichole Tomjanovich, M.D.Houston, TX 770191538349675
- Melissa Antoine, MDHouston, TX 770201568691483
Common questions
What is Edwin Enoch Johnstone, MD's NPI number?
Edwin Enoch Johnstone, MD's National Provider Identifier (NPI) is 1295925287, issued on Jul 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Edwin Enoch Johnstone, MD located?
The NPPES record lists a practice address at 2323 South Shepherd Drive, Houston, TX, 77019. Phone: (713) 528-4000. Providers update this record themselves, so call before visiting.
How can I verify Edwin Enoch Johnstone, MD's license?
NPPES lists Texas license number D1688, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Edwin Enoch Johnstone, MD prescribe under Medicare Part D?
In 2024, Edwin Enoch Johnstone, MD had 113 Medicare Part D claims for 14 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.