2026 NPPES data Oral & Maxillofacial Surgery (D.M.D.) NPI 1609162189 D.M.D., M.D.
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REBECCA GRAMMER, D.M.D., M.D.

Oral & Maxillofacial Surgery (D.M.D.) in ST. LOUIS, Missouri. 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
331
Medicare Part D claims · 153 beneficiaries · Oral & Maxillofacial Surgery (D.M.D.) avg: 324

What the federal data shows

REBECCA GRAMMER, D.M.D., M.D. filed 331 Medicare Part D claims in 2023 as a Oral & Maxillofacial Surgery (D.M.D.) in ST. LOUIS, Missouri.

331
Part D claims, 2023

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

REBECCA GRAMMER, D.M.D., M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

331 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

REBECCA GRAMMER, D.M.D., M.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).

What does the federal data show about REBECCA GRAMMER, D.M.D., M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/23/2011

NPI 1609162189

Primary specialty

Oral & Maxillofacial Surgery (D.M.D.)

Niche

1,112 US NPIs in this specialty

Medicare Part D claims

331 2% vs specialty avg

2023 prescription claims

Specialty avg: 324

Specialty distribution in Missouri

How Oral & Maxillofacial Surgery (D.M.D.) compares to other specialties among Missouri providers

Missouri providers

Oral & Maxillofacial Surgery (D.M.D.) share within Missouri

1. Oral & Maxillofacial Surgery (D.M.D.)42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Oral & Maxillofacial Surgery (D.M.D.) share within Missouri

Specialty board-certification context

Estimated specialty board-certified rate — Oral & Maxillofacial Surgery (D.M.D.) (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Oral & Maxillofacial Surgery (D.M.D.) ABMS/AOA estimate

Est. board-certified rate (Oral & Maxillofacial Surgery (D.M.D.)) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Oral & Maxillofacial Surgery (D.M.D.)) — 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).

REBECCA GRAMMER, D.M.D., M.D. appears in the CMS NPPES registry as a Oral & Maxillofacial Surgery (D.M.D.) provider holding D.M.D., M.D. credentials at 1034 S. BRENTWOOD, ST. LOUIS, MO, 63117, with a listed phone of (314) 721-1010. NPI 1609162189 was issued on 06/23/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRAMMER 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 331 prescription claims written by this provider, covering 153 Medicare beneficiaries and totaling roughly $1K in drug spend, with an opioid prescribing rate of 48.3%. 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.

Oral & Maxillofacial Surgery (D.M.D.) is a narrow specialty nationwide, with 1,112 enrolled providers across 52 states and an average of 324 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

1034 S. BRENTWOOD
ST. LOUIS, MO 63117

Provider Details

NPI 1609162189
Specialty Oral & Maxillofacial Surgery (D.M.D.)
Credentials D.M.D., M.D.
Gender Female
NPI Issued 06/23/2011

Medicare Part D Prescribing Data

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

331
Total Claims
$1K
Total Drug Cost
153
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
333
Total Day Supply
2,159
Generic Drug Cost
$1K
Opioid Claims
160 (48.3% rate)
Antibiotic Claims
132

Patient Demographics

Average Patient Age
73.2 years
Avg HCC Risk Score
1.05
Gender Split
53% female / 47% male

Top Prescribed Drugs (Medicare Part D)

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

What REBECCA GRAMMER, D.M.D., M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Amoxicillin
99
Acetaminophen-Codeine
Acetaminophen With Codeine
84
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
38
Chlorhexidine Gluconate
19
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
16
Clindamycin Hcl
15
Tramadol Hcl
15

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

Oral & Maxillofacial Surgery (D.M.D.) Overview

How REBECCA GRAMMER, D.M.D., M.D. fits within the Oral & Maxillofacial Surgery (D.M.D.) landscape nationally.

1,112
Oral & Maxillofacial Surgery (D.M.D.) Providers in US
52
States with Oral & Maxillofacial Surgery (D.M.D.)
324
Avg Claims per Provider

REBECCA GRAMMER, D.M.D., M.D.'s 331 claims are above the specialty average of 324.

Nearby Oral & Maxillofacial Surgery (D.M.D.) Providers in Missouri

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

Compare Oral & Maxillofacial Surgery (D.M.D.) nationally: see state-by-state distribution →

Frequently Asked Questions

What is REBECCA GRAMMER, D.M.D., M.D.'s specialty?
REBECCA GRAMMER, D.M.D., M.D. specializes in Oral & Maxillofacial Surgery (D.M.D.) and practices in ST. LOUIS, Missouri. Credentials: D.M.D., M.D..
How much does REBECCA GRAMMER, D.M.D., M.D. prescribe under Medicare Part D?
In 2023, REBECCA GRAMMER, D.M.D., M.D. wrote 331 Medicare Part D claims totaling $1K in drug costs for 153 beneficiaries.
Where is REBECCA GRAMMER, D.M.D., M.D. located?
REBECCA GRAMMER, D.M.D., M.D. is located at 1034 S. BRENTWOOD, ST. LOUIS, MO, 63117. Phone: (314) 721-1010.
What is REBECCA GRAMMER, D.M.D., M.D.'s NPI number?
REBECCA GRAMMER, D.M.D., M.D.'s National Provider Identifier (NPI) is 1609162189, issued on 06/23/2011.
Does REBECCA GRAMMER, D.M.D., M.D. prescribe opioids?
Yes, REBECCA GRAMMER, D.M.D., M.D. had 160 opioid claims in 2023 with an opioid prescribing rate of 48.3%.
How many Oral & Maxillofacial Surgery (D.M.D.) providers are there in the US?
There are 1,112 Oral & Maxillofacial Surgery (D.M.D.) providers across 52 states in the US. The average Oral & Maxillofacial Surgery (D.M.D.) provider writes 324 Medicare Part D claims per year.
What drugs does REBECCA GRAMMER, D.M.D., M.D. prescribe most often?
Based on 2023 Medicare Part D data, REBECCA GRAMMER, D.M.D., M.D.'s most frequently prescribed drugs include Amoxicillin, Acetaminophen-Codeine, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does REBECCA GRAMMER, D.M.D., M.D. accept Medicare?
REBECCA GRAMMER, D.M.D., M.D. appears in CMS Medicare data with 331 Part D claims and 153 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify REBECCA GRAMMER, D.M.D., M.D.'s credentials?
REBECCA GRAMMER, D.M.D., M.D.'s NPI is 1609162189 with credentials D.M.D., M.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