2026 NPPES data Psychiatry Physician NPI 1992870349 M.D., PHARM.D.
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MICHAEL ARAMBULA, M.D., PHARM.D.

Psychiatry Physician in SAN ANTONIO, Texas. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
118
Medicare Part D claims · 14 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$502.17
6 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MICHAEL ARAMBULA, M.D., PHARM.D. is a Psychiatry Physician ([object Object]) practicing in SAN ANTONIO, Texas with a Medicare Part D prescribing footprint of 118 claims across 14 beneficiaries — 12% brand-name prescribing . Industry payments of $502.17 across 6 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MICHAEL ARAMBULA, M.D., PHARM.D. filed 118 Medicare Part D claims in 2023 across SAN ANTONIO, Texas. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

MICHAEL ARAMBULA, M.D., PHARM.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

MICHAEL ARAMBULA, M.D., PHARM.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 11/21/2006

NPI 1992870349

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

118 89% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

Specialty distribution in Texas

How Psychiatry Physician compares to other specialties among Texas providers

Texas providers

Psychiatry Physician share within Texas

1. Psychiatry Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatry Physician share within Texas

Specialty board-certification context

Estimated specialty board-certified rate — Psychiatry Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Psychiatry Physician ABMS/AOA estimate

Est. board-certified rate (Psychiatry Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Psychiatry Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

MICHAEL ARAMBULA, M.D., PHARM.D. is a Psychiatry Physician provider practicing in SAN ANTONIO, Texas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D., PHARM.D.. NPI: 1992870349. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

MICHAEL ARAMBULA, M.D., PHARM.D. appears in the CMS NPPES registry as a Psychiatry Physician provider holding M.D., PHARM.D. credentials at 14800 US 281 NORTH, SAN ANTONIO, TX, 78232, with a listed phone of (210) 490-4850. NPI 1992870349 was issued on 11/21/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ARAMBULA most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 118 prescription claims written by this provider, covering 14 Medicare beneficiaries and totaling roughly $33K in drug spend, split 12% brand-name and 88% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Psychiatry Physician is a high-volume specialty nationwide, with 53,104 enrolled providers across 56 states and an average of 1,038 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

14800 US 281 NORTH
SAN ANTONIO, TX 78232

Provider Details

NPI 1992870349
Specialty Psychiatry Physician
Credentials M.D., PHARM.D.
Gender Male
NPI Issued 11/21/2006

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for MICHAEL ARAMBULA, M.D., PHARM.D.. Source: openpaymentsdata.cms.gov.

Total received

$502

Largest payer

Janssen Pharmaceuticals, Inc

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — Texas TMB 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 — they are NOT specific to MICHAEL ARAMBULA, M.D., PHARM.D.. To verify MICHAEL ARAMBULA, M.D., PHARM.D.'s current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

MICHAEL ARAMBULA, M.D., PHARM.D. — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 118 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

118
Total Claims
$33K
Total Drug Cost
14
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
222
Total Day Supply
6,622
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$31K
Generic Drug Cost
$2K

Patient Demographics

Average Patient Age
66.4 years
Avg HCC Risk Score
1.11

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Quetiapine Fumarate
23
Sertraline Hcl
18
Invega Sustenna
Paliperidone Palmitate
13
Duloxetine Hcl
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Psychiatry Physician Overview

How MICHAEL ARAMBULA, M.D., PHARM.D. fits within the Psychiatry Physician landscape nationally.

53,104
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider

MICHAEL ARAMBULA, M.D., PHARM.D.'s 118 claims are below the specialty average of 1,038.

Nearby Psychiatry Physician Providers in Texas

Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as ARAMBULA.

Compare Psychiatry Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MICHAEL ARAMBULA, M.D., PHARM.D.'s specialty?
MICHAEL ARAMBULA, M.D., PHARM.D. specializes in Psychiatry Physician and practices in SAN ANTONIO, Texas. Credentials: M.D., PHARM.D..
How much does MICHAEL ARAMBULA, M.D., PHARM.D. prescribe under Medicare Part D?
In 2023, MICHAEL ARAMBULA, M.D., PHARM.D. wrote 118 Medicare Part D claims totaling $33K in drug costs for 14 beneficiaries.
Where is MICHAEL ARAMBULA, M.D., PHARM.D. located?
MICHAEL ARAMBULA, M.D., PHARM.D. is located at 14800 US 281 NORTH, SAN ANTONIO, TX, 78232. Phone: (210) 490-4850.
What is MICHAEL ARAMBULA, M.D., PHARM.D.'s NPI number?
MICHAEL ARAMBULA, M.D., PHARM.D.'s National Provider Identifier (NPI) is 1992870349, issued on 11/21/2006.
Does MICHAEL ARAMBULA, M.D., PHARM.D. prescribe more brand-name or generic drugs?
MICHAEL ARAMBULA, M.D., PHARM.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $31K in brand drug costs.
How many Psychiatry Physician providers are there in the US?
There are 53,104 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
What drugs does MICHAEL ARAMBULA, M.D., PHARM.D. prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL ARAMBULA, M.D., PHARM.D.'s most frequently prescribed drugs include Quetiapine Fumarate, Sertraline Hcl, Invega Sustenna. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL ARAMBULA, M.D., PHARM.D. accept Medicare?
MICHAEL ARAMBULA, M.D., PHARM.D. appears in CMS Medicare data with 118 Part D claims and 14 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL ARAMBULA, M.D., PHARM.D.'s credentials?
MICHAEL ARAMBULA, M.D., PHARM.D.'s NPI is 1992870349 with credentials M.D., PHARM.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology