NPPES file of Aug 9, 2026

Ivan C. Spector, M.D.

Psychiatry Physician · Houston, TX

Ivan C. Spector, M.D. is a psychiatry physician with a practice address in Houston, Texas, and NPI 1124207279, issued on Oct 25, 2007. Check the license (Texas G5633, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1124207279
Name
Ivan C. Spector
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
G5633 TX
Self-reported in NPPES; status is on the state search
Practice location
3100 Weslayan St, Houston, TX 77027
Phone
(713) 963-0769
Enumerated
Oct 25, 2007
Record last updated
Jun 1, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(713) 963-8536
Medicare enrollment
Enrolled (PECOS I20120608000330); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At Houston, 1983
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest psychiatry physician records → All 3,318 in Texas → Look up another NPI →

Also registered at 3100 Weslayan St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Geoffrey Calaway, O.D.Optometrist1497751986
  2. Michael Caplan, MDOphthalmology Physician1225034549
  3. Robert Coffee, MDOphthalmology Physician1558475582
  4. Tenley Fukui, LPCMental Health Counselor1588787477
  5. David Garza, ODOptometrist1194721423
  6. William Krell, D.D.S.General Practice Dentistry1366556078

Verify Ivan C. Spector in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license G5633    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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5.7 times the Medicare Part D claims of the average psychiatry physician in 2024

5,745 Medicare Part D claims for 320 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.

  1. Ivan Spector5,745
  2. Specialty average1,000

Most prescribed

  1. Escitalopram Oxalate581 claims
  2. Quetiapine Fumarate508 claims
  3. Mirtazapine447 claims
  4. Clonazepam439 claims
  5. Trazodone Hcl301 claims
  6. Sertraline Hcl241 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.

Industry payments in 2024: $1,794.11

77 payments; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ivan Spector$1,794.11
  2. Specialty average$4,954.93

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Ivan C Spector MD PAHouston, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ivan C. Spector among 3,318 psychiatry physician records in Texas

Ivan C. Spector, M.D. 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 fileYes · 45% of these records are
  • Graduated1983 · median 2006 among the 1,481 with a school on file
  • Record last updated2012 · 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

  1. Kenneth Adam, M.D.Houston, TX 770271942428479
  2. Milton Altschuler, M.D.Houston, TX 770271376691790
  3. Kriste Babbitt, MDHouston, TX 770271710140108
  4. Susan Backes, MDHouston, TX 770271972504975
  5. William Boylston, MDHouston, TX 770271700938305
  6. Aaron Fink, M.D.Houston, TX 770271619248622
  7. Felecia Garner, M.D.Houston, TX 770271922239961
  8. Gregory Graham, MDHouston, TX 770271710100953

Common questions

What is Ivan C. Spector, M.D.'s NPI number?

Ivan C. Spector, M.D.'s National Provider Identifier (NPI) is 1124207279, issued on Oct 25, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Ivan C. Spector, M.D. located?

The NPPES record lists a practice address at 3100 Weslayan St, Houston, TX, 77027. Phone: (713) 963-0769. Providers update this record themselves, so call before visiting.

How can I verify Ivan C. Spector, M.D.'s license?

NPPES lists Texas license number G5633, 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 Ivan C. Spector, M.D. prescribe under Medicare Part D?

In 2024, Ivan C. Spector, M.D. had 5,745 Medicare Part D claims for 320 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.